Question

Which statement BEST describes a uniform probability model?
Responses
A No desired outcome is possible.No desired outcome is possible.
B One outcome has a greater chance of occurring.One outcome has a greater chance of occurring.
C The desired outcome is certain to occur.The desired outcome is certain to occur.
D All outcomes are equally likely to occur.

Answer 1

Which describes a uniform probability model?
Responses
A selecting a ball from 2 red balls and 3 yellow ballsselecting a ball from 2 red balls and 3 yellow balls
B selecting a sock from 5 black socks and 10 white socksselecting a sock from 5 black socks and 10 white socks
C drawing a red or black card from a deck of cardsdrawing a red or black card from a deck of cards
D equally divided five section spinner with three colorsequally divided five section spinner with three colors

Answer 2

7 of 117 of 11 Items
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Question
Rolling a Die
Number Frequency
1 46
2 54
3 53
4 47
5 24
6 26


Eliza is rolling a die and recording whether she gets an even or an odd number. She rolls the die 250 times and records the number that she gets in the table. What is the experimental probability that she gets an even number?
Responses
A 153250
153 250
B 97250
97 250
C 127250
127 250
D 123250

Answer 3

Probability of Spinning a Color
Color Number of times spun
blue 8
red 7
green 2
yellow 3
purple 5


A spinner that has 5 areas of equal size, blue, red, green, yellow, and purple, is spun 25 times. The results are shown in the table. Are all outcomes equally likely according to the results of the experiment?
Responses
A Yes, all of the probabilities add to equal one.Yes, all of the probabilities add to equal one.
B Yes, since the areas of each colored section has the same area.Yes, since the areas of each colored section has the same area.
C No, all of the probabilities do not add to equal one.No, all of the probabilities do not add to equal one.
D No, it seems more likely to spin a blue or red than a green or yellow.

Answer 4

Mary Jane spins the spinner 15 times. The arrow lands 6 times on a star and 9 times on the heart. Which THREE statements are correct when comparing the experimental and theoretical probabilities?
Responses
A The experimental probability for landing on the heart is greater than the theoretical probability.The experimental probability for landing on the heart is greater than the theoretical probability.
B The theoretical probability for landing on the star is greater than the experimental probability.The theoretical probability for landing on the star is greater than the experimental probability.
C As the number of spins increases, the closer the experimental probability will get to the theoretical probability.As the number of spins increases, the closer the experimental probability will get to the theoretical probability.
D The experimental probability for landing on the heart is less than the theoretical probability.The experimental probability for landing on the heart is less than the theoretical probability.
E The experimental probability for landing on the star is greater than the theoretical probability.

Answer 5

When you press Enter on the keyboard, a computer program outputs a random odd number greater than 1 and less than 9.
Question 1
What is the sample space for the given situation?
Responses
A {1, 3, 5, 7, 9}{1, 3, 5, 7, 9}
B {3, 5, 7}{3, 5, 7}
C {3, 4, 5, 6, 7, 8, 9}{3, 4, 5, 6, 7, 8, 9}
D {2, 3, 4, 5, 6, 7, 8, 9}

Answer 6

A book club is trying to decide a day and time to meet. They can meet either Monday or Wednesday. The possible times are 2 p.m. or 6 p.m. What is the sample space for this situation?
Responses
A {(M, 2), (M, 6), (W, 2), (W, 6)}{(M, 2), (M, 6), (W, 2), (W, 6)}
B {(M, 6), (W, 2)}{(M, 6), (W, 2)}
C {(M, 2), (W, 6)}{(M, 2), (W, 6)}
D {(M, W), (2, 6)}{(M, W), (2, 6)}

Answer 7

Hannah is getting dressed for a party. She plans to wear either shorts or jeans, a red, blue or green shirt, and flip flops or tennis shoes. According to the tree diagram, how many possible outfits can she make?
Responses
A 88
B 1212
C 1010
D 1616
E 14

Answer 8

Which describes a uniform probability model?
Responses
A selecting a sock from 5 black socks and 10 white socksselecting a sock from 5 black socks and 10 white socks
B drawing a red or black card from a deck of cardsdrawing a red or black card from a deck of cards
C equally divided five section spinner with three colorsequally divided five section spinner with three colors
D selecting a ball from 2 red balls and 3 yellow balls

Answer 9

D All outcomes are equally likely to occur.

Answer 10

D equally divided five section spinner with three colors

Answer 11

A 153/250

Answer 12

D No, it seems more likely to spin a blue or red than a green or yellow.

Answer 13

B, C, and D are the correct statements.

Answer 14

B {3, 5, 7}

Answer 15

A {(M, 2), (M, 6), (W, 2), (W, 6)}

Answer 16

E 14

Answer 17

C equally divided five section spinner with three colors