Unit 6A Review

• Red

• Blue

• Gree

• Yellow

Bruce flipped a penny 5 times. It landed on heads 2 times and tails 3 times. If he flips the coin a 6th time, what statement is true?

• It is more likely to be heads

• It is equally likely to be heads or tails.

• It is more likely to be tails.

• It is not likely to be tails

Tags

CCSS.7.SP.C.5

Cathy is playing a game with a set of 52 cards. The cards are different colors and each shows a number.

The probability of randomly selecting a red card is .

The probability of randomly selecting a 5 is .

There are 2 cards that are red and show a 5.

If Cathy randomly selects a card, what is the probability that her card is red and a 5?

• $\frac{2}{52}$

• $\frac{2}{15}$

• $\frac{1}{26}$

• $\frac{15}{26}$

A bag contains 4 Snickers bars and 1 Twix bar, and the outcome is drawing a Twix bar. Was drawing a Twix Bar likely?

• Yes

• No

Tags

CCSS.7.SP.C.5

Amanda has three different colored pens in her book bag: blue, green and purple. The probability of randomly choosing a blue pen from Amanda’s book bag is 40%. The probability of randomly choosing a green pen from Amanda’s book bag is 0.10.

Explain how likely it is, in relation to 0, for Amanda to randomly choose a purple pen from her book bag.

• Likely

• Neither Likely nor Unlikely

• Unlikely

• Impossible

Tags

CCSS.7.SP.C.5

Amanda has three different colored pens in her book bag: blue, green and purple. The probability of randomly choosing a blue pen from Amanda’s book bag is 40%. The probability of randomly choosing a green pen from Amanda’s book bag is 0.10.

What is the probability that Amanda will draw a black pen?

• Certain

• Impossible

• Likely

• Unlikely

Tags

CCSS.7.SP.C.5

Amanda has three different colored pens in her book bag: blue, green and purple. The probability of randomly choosing a blue pen from Amanda’s book bag is 40%. The probability of randomly choosing a green pen from Amanda’s book bag is 0.10.

Suppose Amanda had 20 pens total in her bag. How many blue pens would Amanda expect to see in her bag?

• 2

• 8

• 10

• None

Tina is packing for a five-day trip. Of her shirt colors, two are blue, two are white, and one is grey. Tina does not plan on wearing a t-shirt more than once.

What is the probability that Tina will not wear a white t-shirt on the first day of her trip?

• $\frac{3}{5}$

• $\frac{2}{5}$

• $\frac{4}{6}$

• $\frac{1}{5}$

Tags

CCSS.7.SP.C.7B

Tina is packing for a five-day trip. Of her shirt colors, two are blue, two are white, and one is grey. Tina does not plan on wearing a t-shirt more than once.

What is the probability that Tina will wear blue on the first day of her trip and then wear grey on the second day of her trip?

• $\frac{1}{20}$

• $\frac{2}{5}$

• $\frac{1}{4}$

• $\frac{1}{10}$

Tags

CCSS.HSS.CP.B.9

Eliza is rolling a die and recording whether she gets an even or an odd number. She wants to know if the outcomes are equally likely. She rolls the dice 250 times and records the number that she gets in the table. Are the outcomes of an even number versus an odd number equally likely?

• No, as the probability of the outcome is not 1.

• Yes, as the probability of getting an odd number is greater.

• Yes, as the probability of each outcome is approximately equal.

• No, as the probability of each outcome is not approximately equal.