Teri and Lee are playing a game that consists of consists of spinning a spinner with eight equal spaces numbered 1 through 8, and then flipping two coins at the same time.
Terri wins 10 points if the spin is greater than 5 and the coins are different (one head and one tail).
Lee wins 15 points if the spin is an even number and the coins are both tails.
Is the game is fair or unfair? Why?

A.The game is not fair, because Terri’s expected value is 10(4/8)(2/4)=2.5 and Lee’s expected value is 15(4/8)(1/4)=1.875.
B.The game is fair, because Terri’s expected value is 10(3/8)(2/4)=1.875 and Lee’s expected value is 15(4/8)(1/4)=1.875.
C.The game is not fair, because Terri’s expected value is 10(38)(13)=1.25 and Lee’s expected value is 15(4/8)(1/3)=2.5.

Answers

Answer 1

Answer:

B. The game is fair, because Terri’s expected value is 10(3/8)(2/4)=1.875 and Lee’s expected value is 15(4/8)(1/4)=1.875.

Step-by-step explanation:

Probabilities

Teri

10 points for spin > 5 and 2 coins are different3 spins out of 8 and 2 outcomes out of 410*(3/8)*(2/4) = 1.875

Lee

15 points for spin is even number and 2 coins are both tails4 spins out of 8 and two same outcomes15*(4/8)*(1/2*1/2) = 1.875

The game is fair as per the outcome above

Correct option is B.


Related Questions

plss i need help for this question real fast ?(10-(-9)*-1) plss real quick!!!!​

Answers

Answer:

1

Step-by-step explanation:

(10-(-9)*-1)

Remember that 2 negative equal a positive. So -(-9) is positive.

(10+9*-1)

Then, PEMDAS is how you should finish this.

So, 9*-1 is -9

Then, 10-9 is 1

use the distributive property 15(4n-2)=​

Answers

Answer:

60n-30

Step-by-step explanation:

you would do 15 * 4n

that would give you 60. since 15 *4 is 60 and then you would just put the n

15*2 equals 30. You would make it a negative 30 since it is a negative 2.

then you would combine them and get the answer

60n-30

Hope this helps!

Answer: 60n-30 also i didn't copy frank because i forgot the hope this helps and if you report me you'll regret it really bad. Have a great day! :>  Step-by-step explanation: you would do 15 * 4n  that would give you 60. since 15 *4 is 60 and then you would just put the n  15*2 equals 30. You would make it a negative 30 since it is a negative 2. then you would combine them and get the answer 60n-30

Solve the y for the equation 5x-2y=10

Answers

Answer:

y = 5/2x - 5

Step-by-step explanation:

Step 1: Write equation

5x - 2y = 10

Step 2: Solve for x

Subtract 5x on both sides: -2y = 10 - 5xDivide both sides by -2: y = -5 + 5/2xRewrite: y = 5/2x - 5

Answer:

y = (5/2)x - 5

Step-by-step explanation:

5x-2y = 10

Subtract 5x from both sides

-2y = 10 - 5x

Rearrange

-2y = -5x + 10

divide both sides by -2 to isolate y

y = (5x/2) + (10/-2)

y = (5/2)x - 5

Perform the operation. Enter your answer in scientific notation.
7 x 10^6 - 5.5 x 10^6

Answers

1.5*10^6x

..................

HEEYYA answer this ASAP ILL GIVE YOU 50 points

Answers

Answer:

A

Step-by-step explanation:

Answer:

I'm pretty shure it A. based on which way the graph moves and the direction iit's going in

Identify the reference angle Ф for each given angle, Ф.
When ∅=300°, Ф=

Answers

Answer:  60 degrees

=====================================================

Explanation:

The given angle is ∅ = 300. This x value is between 270 and 360, so we're in quadrant IV (the southeast quadrant)

The rule to get the reference angle y for this quadrant is

Ф = 360-∅

This tells us the angle made with the positive x axis

Ф = 360-∅

Ф = 360-300

Ф = 60

A 60 degree angle forms with the positive x axis as shown in the diagram below.

A line crosses through the points (0,2) and (-10, -16) Which of the following is the slope of the line?
A
[tex] \binom{9}{5} [/tex]
b
[tex] - \binom{9}{5} [/tex]
c
[tex] \binom{1} {3} [/tex]
d
[tex] \binom{5}{9} [/tex]

Answers

Answer:

  9/5

Step-by-step explanation:

The slope between the two points can be found by ...

  m = (y2 -y1)/(x2 -x1)

  m = (-16-2)/(-10-0) = -18/-10

  m = 9/5

The slope of the line is 9/5. Perhaps this is a match to choice A.

Answer: 9/5

m = (y2 -y1)/(x2 -x1)

 m = (-16-2)/(-10-0) = -18/-10

 m = 9/5

Name this polynomial based on it degree and number of terms: x³ + 2x – 1

1) quadratic binomial

2) quadratic trinomial

3) cubic trinomial

4) cubic binomial

Answers

It’s a cubic Trinominal

Explanation
Just a heads up I’m not fully 100% sure but that’s the one only that makes sense. Since it’s cubic it should have a degree of 3 which it does. Then a tribunal has 3 terms which it does. I’m sorry if it ain’t fully right

write this variable expression
c and 301 more is 270

Answers

Answer:

c + 301 = 270

Step-by-step explanation:

c = -31

Is the following statement true or false? Perpendicular lines do not intersect.
true or false?

Answers

Answer:

true

Step-by-step explanation:

Answer: false

Step-by-step explanation: the lines are always going to intersect

(-4,7) (-6,-3) determien the slope of the linePLEASE iM bad At MATH

Answers

Answer:

7-(-3)/-4-(-6)

10/2

y=5x

Step-by-step explanation:

Answer:

the slope is 5.

Step-by-step explanation:

the equation for slope is y2-y1/x2-x1

the points are (-4,7), (-6, -3)

label the points:

x1: -4

y1: 7

x2: -6

y2: -3

Now, plug it into the equation

-3-7/-6--4

-10/-2

the slope is 5

Hope this helps!

hello sorry if i actually ask really stupid questions i dumb

Answers

Hi, no ur fine! We r all here to help each other, but um do u need anything?

i can assure u you are smarter then me

Who ever is reading this:

I love u.

U matter.

The world needs u

hang in there ik it may be bad but u deserve the world <3

ur beautiful for who u r, not wht u look like. no matter ur shape, size, color, gender.. anything

don't give up bby i need u to live.

i wish i could take everyones problems so yall wouldn't have to have em but i cant so just know ily and if anyone needs to talk u can talk to me

Pls pass this on. Everyone deserves to know this. ♥️♥️

just copy and paste its not hard pls this could save someones life

Find the equation of this line.
(0,-2) (4,6)

Answers

Answer:

y=2x-2

you could use y=mx+b

SOLVE SEVEN AND SIX I WILL GIVE BRAINLIST

Answers

Answer:

C= 150.8 I hope this helped! Also I used Google because I didn't know.

Step-by-step explanation:

Answer:

5) 75.36ft

6) 150.72mm

Step-by-step explanation:

Bc, you need to multiply 24 * 3.14 and you'll get 75.36.

A squirrel burrowed 12 holes in 3 minutes. How many holes could the squirrel burrow in 12 minutes? Submit Answer​

Answers

It would be 48 u have to multiply 12x4 which equals 48

b is a point between a and c where ac = 5x, ab = 12, and bc = 3x + 2. what is the measure of the length of ac?

Answers

Answer:

AC=22

Step-by-step explanation:

The measure of the Length of AC is; 35

We are given;

ac = 5x

ab = 12

bc = 3x + 2

We are told that b is between a and c. This means that;

ab + bc = ac

Thus;

12 + 3x + 2 = 5x

14 + 3x = 5x

Subtract 3x from both sides to get;

5x - 3x = 14

2x = 14

x = 14/2

x = 7

Thus, ac = 5x = 5 * 7

ac = 35

Read more at; https://brainly.com/question/19083642

a regular photograph measuring 2 inches by 4 inches is enlarged by a scale factor of 8. What are the dimensions of the new photograph?

Answers

Answer:

16 inches by 32 inches or 1 1/3 feet by 2 2/3 feet

Step-by-step explanation:

I need help ASAP please and thank you.

Answers

Answer:

35

Step-by-step explanation:

(-5)(-7) is a multiplication problem, so you would multiply -5 and -7 together to get 35 as two negatives make a positive

6(x+5)
PLEASE HELP ASAP

Answers

Answer:

Multiply using the distributive property.

6 x + 30

Step-by-step explanation:

reverse 6x+30=6(x+5)

Factor  6  out of  

6 x + 30 =6 ( x + 5)

what is the length of DE

Answers

Answer:

A. 10

Step-by-step explanation:

The two shapes are simmilar.

IIIlas' car usses 65 L of petrol to travel 728 km, while Hanis car uses 48 L in 552 km

how much petrol would each car use to travel 830 km?​

Answers

Answer:

IIIlas' car 74.107  L

Hanis car 72.173 L

Step-by-step explanation:

65 L petrol for 728 km drive = 65/728= 0.089

0.089 x 830 = 74.107 L (Illlas)

48 L petrol for 552 km drive = 48/552 = 0.08695

0.08695 x 830 = 72.17 L (Hanis)

Hope this helps


Erin has $14 dollars to buy 7 lunches for the week. Write and solve an inequality that
represents the prices she can pay per lunch.

Answers

Answer:

7x [tex]\leq[/tex] $14 ;  x[tex]\leq[/tex] 2

Step-by-step explanation:

Where x represents the number of lunches

7 ^ 8 times 7 ^ 3 times 7 ^ 4 / 7 ^ 9 times 7 ^ 5​

Answers

Answer:

7^8 =5764801 * 7^3 =343 * 7^4 =2401 ÷ 7^9 = 40353607 * 7^5 =16807

5764801 *343 *2401 ÷ 40353607 *16807

=4747561509943 ÷ 678223072849 = 7

Determine the value of y, if x is 6.
y = |x|-1
Answer:

Answers

Answer:

5

Step-by-step explanation:

how many pairs of numbers add up to 10

Answers

Answer:

1 Pair.

Step-by-step explanation:

If I am not mistaken the question you are asking is how many pairs of numbers have a sum of 10.

5 + 5 = 10

No other number can ADD up to 10.

1 Pair is your answer.

12.5z + 19.4 = -2.7z + 93.9

Answers

Answer:

z =  4.90131578

Step-by-step explanation:

Answer:

9.8z + 113.3

Step-by-step explanation:

Combine like terms!

12.5z - 2.7z = 9.8z

19.4 + 93.9 = 113.3

The “Flip the Switch” challenge has a 10-second-long music clip. You film a 17-second-long video. What percent of your video does the music clip represent? *

Answers

approximately 59% of the video

10/17 as a decimal is 58.82, so rounded up, it would be 59^

Idk I’m dumb so please help

Answers

Answer:

16) x=63°

17) x=48°

18) x=82° , y=54°

19) x=20° , y=50°

Step-by-step explanation:

PLEASE HELP! MUCH APPRECIATED. MATH IS SO HARD :(

Answers

Answer:

see below

Step-by-step explanation:

x+ 7.05 = 45.3

Subtract 7.05 from each side

x+ 7.05-7.05 = 45.3-7.05

x =38.25

Let x be the number

x+3.5 = -4.3

Subtract 3.5 from each side

x+3.5 - 3.5 = -4.3-3.5

x = -7.8

x is the cost of the drawing tablet

x+ 3.95 = 6.94  correct

The second equation add the total cost plus the cost of the drawing tablet  and sets it equal to the cost of the pencils.  This is not correct

6.94+x = 3.95   incorrect

Answer:

1. x=38.25

2. -7.8

3. the second option

Step-by-step explanation:

1. x+7.05=45.3

(move the constant to the right)

x=45.3-7.05

(calculate)

x= 38.25

(answer)

2.

(you subtract -4.3 by 3.5)

3.

(you can't use $6.94 + x = $3.95 because $6.94 is your total overall so you can only use that as your end result)

Use the table to find how many quarts are equivalent to 7 gallons.

There are quarts in 7 gallons.

Answers

Answer:28

Step-by-step explanation:

Answer:28 quarts

Since there are 4 quarts in a gallon you can multiply 4x7 which is 28. Its 28

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