Darrin tosses a quarter and a penny 20 times. He gets heads on both coins
twice. Compare the theoretical probability of getting heads on both coins
with Darrin’s experimental probability of getting heads on both coins. Why
might the probabilities differ?

Answers

Answer 1

Answer:

The 4 possible outcomes are HH, HT, TH, TT.

So theoretically, HH should occur 1in 4 times.

1/4 = x/20

x = 5

So why is it actually 2 in 20 when theoretically it should be 5 in 20? One reason is that theoretical probabilities gain more accuracy with larger numbers of results (e.g tossing the coins 100 times). You can likely think of some more reasons.

Request: Please mark me as the brainliest.

Answer 2

Answer:

x = 5

Step-by-step explanation:


Related Questions

What is the most accurate statement that could be made based on the dot plots shown?

Answers

People spend more hours playing video game than exercising.
People play more video games than exercise

When Abby works 6 hours at the local pool as a lifeguard she earns $57.00. When she works 18 hours she earns $171.00. Which equation represents Abby’s earnings m for any number of hours h?

A) m=57.00h

B) m=9.50h

C) m=6.00h

D) m=18.00h

Answers

The answer is B) 9.50

Mr. Parker bought a coat when it was on sale. He paid 70% of the original price. He paid $42 for the coat. What was the original cost of the coat?

Answers

The answer is $60 because we know %70 of the original price is $42.

A city bus company charges $2.50 per trip. They also offer a monthly pass for $85.00. Write and solve an inequality to find how many times a person should use the bus so that the pass is less expensive than buying individual tickets. Interpret the solution.

Answers

If you use it every day for a month you would still loose 8.50 dollars so. 2.50 x 31 < 85.00

find the 5 consecutive odd integers if the sum of the first integer is 7 more than the sum of the last 2

Answers

Answer: 15,17,19,21,23

Step-by-step explanation:

You can let the middle number = x, then the numbers are

x-4, x-2, x, x+2, x+4

Plugging it back in to what is given,

x-4+x-2+x = 7+x+2+x+4

3x-6 = 2x + 13

x = 19

The numbers are 15, 17, 19, 21, 23

Need points I have no idea what the answer is

A file that is 233 megabytes is being downloaded. If the download is 14.5% complete, how many megabytes have been downloaded? Round your answer to the nearest tenth.

Answers

33.785 is rounded to 33.8 megabytes

use desmos scientific

A number was added to 15. this result was then multiplied by 4 and that total was then divided by 68. if the quotient was 1, what was the number?
please show work and answer.

Answers

Answer:

2

Step-by-step explanation:

2 + 15 = 17

17 x 4 = 68

68 / 68 = 1

Which of the following BEST describes a process by which metamorphic rock becomes igneous rock?
A weathering into sediments, then eroding
B compacting under pressure and cementing
C changing shape under heat and pressure
D melting completely, then cooling

Answers

Answer:

Answer: D. Melting completely, then cooling

Step-by-step explanation:

Metamorphic rock melt, become magma (which is really just lava), and then comes to the Earth’s surface to eventually cool and become igneous rocks.

Your welcome :)

WILL CHOOSE BRAINLIEST!

Answers

Answer:

8% 20%

15% 73%

Step-by-step explanation:

Go straight across!!!

A student claims that the expression “9 times the sum of a number and 13” is translated to the algebraic expression 9n + 13. Is the student correct? If not, what is the correct expression?

Answers

Answer: The student is wrong. The correct algebraic expression is 9(n + 13)

The algebraic expression is represented as follows:

The sum of a number and 13 is represented as follows:

Let

n = the number

Therefore,

The sum of a number and 13 is:

n + 13

9 times the sum of a number and 13” can be translated as follows:

9(n + 13)

Therefore, the student is wrong.

Step-by-step explanation:

hey you can help me out

Answers

Answer:

using The formula 180°N - 360 { N= no. of sides }

we gets 180 * 10 - 360 = 1800 - 360 = 1440°

The answer is C). 1440

plsss help ill give brainly

Answers

Answer:

7,7

Step-by-step explanation:

A vertex should be connected, so 7 as the x makes the most sense

Answer:

therefore, ( 6 , 7 ) is correct.

Step-by-step explanation:

if ( 8 , 5 ) - it will be an obtuse angle triangle.if ( 2, 4 ) - it will be an obtuse angle triangleif ( 6 , 7 ) - it will be an acute angle triangleif ( 7 , 7 ) - it will be a right angle triangle

note: acute triangle is a triangle which has every angle less than 90°

HELPPP!!!
Best to use when data contains _________.

Answers

Answer: For me it was "A collection of facts"

Good Luck

Step-by-step explanation:

16x +36 PLEASE ANSWER

Answers

Answer:

4(4x+9

Step-by-step explanation:

Bye, have a good day.  :)

Sorry if this is wrong.  :(

brainliest, please???

Answer:

x = 2

Step-by-step explanation:

16 x 2 = 32

A triangle has side lengths of 17 cm and 7 cm. Which could be the value of the third side, 28 cm or 19 cm?

Answers

Answer:

19 cm

Step-by-step explanation:

Triangle Inequality Theorem:

The sum of two side lengths of a triangle is always greater than the third side.

17+7> 19                         17+7   IS NOT BIGGER THAN 28

17+19>7

7+19>17

Answer:

19 cm me thinks

Explanation:

it has to be equivalent to the other side

Is 36 T-shirts in 3 boxes equivalent to 60 T-shirts in 6 boxes?

Answers

Answer:no it is not equivalent

Step-by-step explanation:

36x3=108 so there is 108 shirts in that box

60x6=360 so 360 is in that box


so not equivalent because they have different amounts in the boxes one is more and the other one less


your welcome

Answer:

No

Step-by-step explanation:

Since the unit rates 12 t-shirts/1 box

and 10 t-shirts/1 box are not the same, the rates are not equivalent.

Help me please i need step by step explanation to please

Answers

Hopefully this is a little easier to understand how combining like terms is done :)

WILL CHOOSE BRAINLIEST.

Answers

Answer:

Percentage with dark brown feathers are 58 for start and end is 68.

Percentage with pale gray feathers is 75 for start and 80 for end.

Step-by-step explanation:

Graph a line with a slope of 1 and a y intercept of -4

Answers

Answer: Mark it at (0,-4) the go right 1 then up 1. Then draw your line

Step-by-step explanation:

It doesnt let me graph here ._.

Slope = 1 (but turn it into fraction like 1/1)
y intercept = (0,-4)
|
^- y intercept



A newspaper for a large city launches a new advertising campaign focusing on the number of digital subscriptions. The equation S(t)=31,500(1.034)t approximates the number of digital subscriptions S as a function of t months after the launch of the advertising campaign. Determine the statements that interpret the parameters of the function S(t).

Select the two correct answers.

A: The number of digital subscriptions increases by 3.4% each year.
B: The number of digital subscriptions increases by 3.4% each year.
C: The newspaper had 32,571 digital subscriptions when the advertising campaign was launched.
D: The newspaper had 31,500 digital subscriptions when the advertising campaign was launched.
E: The number of digital subscriptions increases by 103.4% each month.

Answers

B 3.4% each year is right

Answer:  A. The number of digital subscriptions increases by 3.4% each year.  and E: The number of digital subscriptions increases by 103.4% each month.

(PLease Help) Here is a picture of The math problem ;-;

Answers

I’m not sure why no area is given, but the answer is height= (2*Area)/(3.2+7)

Answer:

i dont know but ii wish i could help

Step-by-step explanation:

A board game has the spinner shown at the right. On each turn, a player
spins the pointer twice and adds the numbers that the pointer lands on.
a. Make a table that shows the sample space of the sums a player could
get on each turn.
b. A player who spins a sum of 7 gets to pick a Lucky card. What is the
probability that Evelyn will get to pick a Lucky card on her next turn?
Explain your reasoning.
c. A player who spins a sum of 2 has to pick an Unlucky card. If Evelyn has
30 turns during a game, how many more Lucky cards than Unlucky cards
can she expect to get? Justify your answer.

Answers

Answer:

Try B Or C

Step-by-step explanation:

*PLEASE Help* 100 points* *Any spam will be reported*
The admission fee at a small fair is $1.50 for children and $4.00 for adults. On a certain day $5,050 is collected. Write an equation to represent the situation.

Answers

Answer:

1.5x + 4y = 5,050

Step-by-step explanation:

We are finding a number of adult and child tickets to equal 5,050. So plug in any variables you want and you get 1.5x + 4y = 5,050

Answer:

$5,050 ÷ by 4 is $12

$5,059 ÷ by 1.50 is $3,366

what is the image of (-1,-6) after a reflection over the y-axis?

Answers

Answer:1,-6

Step-by-step explanation: when you reflect it over the y axis the -1 turns into a 1 because of how it rotated

The new coordinates would be (1,-6) after a reflection over the y-axis

Pre-algebra
Graphing
Due urgently

Answers

24 second and 4 ounces

Step-by-step explanation:

The point where both lines meet is the point where are both equal

The point where both lines met is (24,4)

Since the x-axis represent second the y-coordinate will represent the number of second it takes for them to be equal to each, other which is 24

Since the Y-axis represents ounces the Y-coordinate will represent the number of ounces they have when they are equal ,which is 4.

And there is only one solution.

Complete the table. Will choose brainliest.

Answers

Answer:

PLEASE GIVE BRAINLIEST PLEASE

Step-by-step explanation:

PLEASE

Answer:

[tex]\huge{\left[\begin{array}{cc}94 \text{ percent brown}&6 \text{ percent black}\\42 \text{ percent brown}&58 \text{ percent black}\end{array}\right]}\\ \huge{\text{ which signifies that the black variation}}\\ \text{ was much better suited for survival}[/tex]

Step-by-step explanation:

To solve for percentages, simply divide the given group by the total.

i.e.,

188/200 = 94% of grasshoppers have brown bodies at the start, and

12/200 = 6% of grasshoppers have brown bodies at the start

Then, for the end

147/350 = 42% of grasshoppers have brown bodies at the end, and

203/350 = 58% of grasshoppers have black bodies at the end.

Hope it helps :) and let me know if you want me to elaborate

The volume of a pyramid is 37cm3. Its base area is 6cm2. What is its height? Round your answer to the nearest tenth of a unit.

Answers

Answer 3.1

Here's the formula:

V=[tex]\frac{lwh}{3}[/tex]

H=3[tex]\frac{V}{lw}[/tex]

3 ·  [tex]\frac{37}{6x6}[/tex] ≈ 3.08333

rounded to : 3.1

(P.S. I also Used a calculator)

Drag a number to each box to complete the product. Numbers may be used more than once. 0.4764.7647.64764,760 Equation Product 476 × 0 . 001 0 . 476 × 10 1 4 . 76 × 10 3 47 . 6 × 0 . 1 Please help me

Answers

Answer:could you  maybe simplify the question

Step-by-step explanation:

Answer:

1.242

Step-by-step explanation:

Ii hope this helps and mark me as brambliest   pleases

A tank was filled with 350 gallons of water. Then a crack developed and 18% of the water leaked out of the tank before it could be repaired. How much water leaked out of the tank?

Answers

Answer:

its 63 if i'm wrong sorry

Step-by-step explanation:

but what you do is 350 X 18% to get 63

Answer:

63 gallons

Step-by-step explanation:

Question: What is 18 percent of 350?

Percentage solution with steps:

Step 1: Our output value is 350.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above, $350 = 100%.

Step 4: Similarly, x = 18%.

Step 5: This results in a pair of simple equations:

350 = 100%(1).

x = 18% (2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

350/x = 100%/18%

Step 7: Again, the reciprocal of both sides gives

x/350=18/100

⇒ x = 63

Therefore, 18% of 350 is 63.

1.An atomic has 5 protons 6 neutrons and 5 electrons. what is the name of this element?

2. An atom has an atomic number of 28 and an atomic mass of 59. what is the name of this element?

3. An atomic number of protons, 78 neutrons, and 55 electrons.what is the name of this element?

Answers

BoronNickelCesium

Hope its right!

Other Questions
3. What type of chemical bond forms between positive and negative ions? 6 A triangle has two sides that are 8 cm and 13 cm. What could be the length of the triangle's third side? Select three that apply. A.5 cm B. 10 cm C. 17 cm D. 20 cm E. 21 cm F.24 cm pls pls plspls help me out with this Find the product and write the answer in decimal form.(6.5) (2 4/5) An animal shelter has 10 cats. Each day 20 cans of food are noworoused for the cats. If each cat eats the same amount of food,how many cans of food does each cat eat in a day? what was Hieroglyphics used for Simplify The Following One reason president James Madison felt we must fight in the war of 1812. Bats and birds eating insects at different times of day is an example of. Which idea is developed in the passage? A ________________ molds, cast, or uses clay to build three dimensional art. Which of the following are not true about contouring?a. One interpolates between given values to correctly place an isopleth.b. Lines should be labeled on each end, and in the middle if it's a long line.c. Contour lines never cross each other, and the final product should be smooth lines.d. Contour lines never branch or fork, but extrapolation for data void regions is permissible.e. A good strategy is to find local maximums and minimums first, and start drawing around one of these. Priya wants to know the name of Sophias baby. Based on your answer to part a, what is its name? still stuck on maths homework... find the area of this figure. round you answer to the nearest hundredth. use 3.14 to approximate pi Which statement describes why greenbelts have formed around the cities shown on the map? These areas have struggled with industrial pollution. Obesity is high in these areas, and residents needed areas to exercise. Residents expressed a need for mixed-income level housing. English residents are moving from cities to rural areas. Motorized vehicles have been banned in these areas. The plane had left at eight o'clock in future perfect tense ANTONIO Qu mala suerte! He odo que (1) a tu amigo Luis. LEOPOLDO No me sorprende que lo (2). l nunca cumpla con su horario de trabajo. Desafortunadamente, dudo que los gerentes de la empresa (3) personalmente con l. Es seguro que se lo (4) por carta. Y eso me parece mal. ANTONIO No estoy seguro de que le (5) una carta. Y yo tambin pienso que los gerentes (6) injustos con l. LEOPOLDO No crees que los gerentes (7) lo correcto? ANTONIO No estoy seguro. Slo creo que todo pas muy rpidamente. Luis es un hombre muy honesto y dudo que se (8) de la empresa. Es verdad que a veces no segua las reglas, pero siempre hizo muy bien su trabajo Simon is creating a flower arrangement. A client asked him to select 4 of the 7 available flower options to create the arrangement. How many different groups of 4 flowers can Simon choose?apparently its 35 I don't get why please helpformula:nCr= n! / (nr)!r! Trevor is tracking the value of a stock he invested in over the course of one business day (8 hours). The value of the stock can be found be adding these two functions, where t represents time in hours:f(t) = 12(1.20)tg(t) = -4.5t