Ch. 7 (7) Mid-Chapter Practice

The probability of an event is 75%. Describe the likelihood of the event.

• Certain

• Likely

• Equally likely to happen or not happen

• Unlikely

• Impossible

Tags

CCSS.7.SP.C.5

You randomly draw a marble from a bag, record its color, and then replace it. You draw a red marble 3 out of 20 times. Which of the following are correct ways to express the experimental probability that the next marble will be red? Select all that apply.

• 3/20

• 0.15

• 15%

• 1/3

Tags

CCSS.7.SP.C.6

There are 3 yellow marbles and 4 silver marbles in a bag. You randomly choose one marble. What is the probability of choosing a yellow marble? Write your answer as a fraction in simplest form.

(a)  

Tags

CCSS.7.SP.C.7B

Use the table to predict the number of times you will spin 3 when you spin the spinner 100 times. You can predict that you will spin 3 (a)   times.

Tags

CCSS.7.SP.C.6

A bag contains lettered tiles. The theoretical probability of choosing a vowel is 30%. The bag contains 42 consonants. How many tiles are in the bag?

(a)  

Tags

CCSS.7.SP.C.8C

Each turn in a game, you randomly draw a card from a deck and replace it. The table shows the number of times you draw each type of card. How many times can you expect to not draw a point card in 30 turns?

(a)  

Tags

CCSS.7.SP.C.6