Probability Review

What is the probability that exactly two girls and two boys were selected?

• 1/5

• 4/5

• 2/5

• 3/5

Tags

CCSS.7.SP.C.8C

The New York Yankees are passing out T-shirts to it's premium club members. There are 7 blue, 5 green, 4 red, and 9 yellow shirts. If Quincy passed out a T-shirt, what is the probability that the color is blue?

• 7/25

• 3/5

• 9/16

• 4/25

Tags

CCSS.7.SP.C.7B

A digital board game has 25 squares with 5 squares of each color. The results of 625 games are shown in the table. For which color is the experimental probability closest to the theoretical probability?

• Green

• Orange

• Pink

• Violet

• Yellow

Answer explanation

The experimental probability is 0.202 while the theoretical is 0.20

Four people - Kevin, Ay'Lahnah, Sanai, and Ja'Sean - enter their names into a drawing. The winner receives a T-shirt, hat, or scarf at random. What is the probability that Ay'Lahnah wins and is given a scarf or Sani wins and is given any prize? Write is as a percent

Tags

CCSS.HSS.CP.B.7

In a game of chance, players spin the pointer of a spinner with six equal-sized sections. The outcomes of the game are shown in the table. Select ALL outcomes that have a frequency closest to its expected frequency?

• 1

• 2

• 3

• 4

Tags

CCSS.7.SP.C.6

Kah'yana records the number of winners of 3 Ring Toss games in the table. Based on the data, how many winners should Kah'yana expect if there are 750 players?

Tags

CCSS.6.RP.A.3B

An 8-sided solid is labeled with faces 1, 2, 3, skip, 4, 5, 6, and skip. What is the sample space for the number solid, and what is the probability of rolling a 1?

• {1, 2, 3, 4, 5, 6}; P(1) = 0.17

• {1, 2, 3, 4, 5, 6, skip}; P(1) = 0.125

• {1, 2, 3, skip, 4, 5, 6}; P(1) = 0.14

• {1, 2, 3, 4, 5, 6, skip, skip};P(1) = 0.125

To play a board game, a player spins the pointer of a spinner with four equal sections numbered 1–4, and then flips a fair coin. Use a tree diagram to represent the sample space. What is the probability of spinning either a 3 or a 4 AND flipping ahead?

Tags

CCSS.7.SP.C.8B

In a school contest, each student draws a number from 1 to 5 at random out of a large basket. The outcomes are shown in the table. What is the probability of drawing a 3?

Tags

CCSS.7.SP.C.6