Making Predictions Based on Probability

Which spinner gives a better chance of success for the event: "Spinning any letter except C"?

• Spinner 1

• Spinner 2

• Neither one can have a success

• Both - they are equally likely

There are 7 red cards, 6 blue cards, 8 purple cards, and 4 green cards in a hat. In a trial, a card is drawn from the hat and then replaced 1,250 times. How many times is a blue card drawn?

• 6 times

• 25 times

• 50 times

• 300 times

• A bag containing 1 white, 4 red, 3 blue, 2 green, and 4 black marbles

• A bag containing 2 white, 6 red, 8 blue, 5 green, and 5 black marbles

• A bag containing 3 white, 2 red, 5 blue, 3 green, and 2 black marbles

• A bag containing 3 white, 3 red, 3 blue, 3 green, and 3 black marbles

In a random survey of 50 students at Great Middle School, 32 said chocolate was their favorite flavor of yogurt. The school has 450 students. How many of them are likely to select chocolate as their favorite flavor?

• 144

• 162

• 225

• 288

Tags

CCSS.7.RP.A.3

There are 25 counters in a bag: 6 red,
4 white, 7 blue, and 8 yellow. You choose one counter at random. Which color are you least likely to choose? 

• white 

• blue 

• red 

• yellow

The table shows the number of votes for different school mascots. Based on the information in the table, what is the most reasonable prediction of the number of votes for eagle out of the next 25 votes?

• 72

• 8

• 1

• 21

How many times should he expect it to not land on yellow?

• 7 times

• 6 times

• 28 times

• 27 times

The spinner is spun 25 times.

What is the best prediction for the number of times it will land on red?

• 5 times

• 3 times

• 6 times

• 20 times

Jill rolls a number cube 30 times. How many times should she expect it to land on a 4?

• 5 times

• 4 times

• 6 times

• 8 times

A number cube is rolled 24 times.

What is the best prediction for the number of times it will land on 5?

• 3 times

• 4 times

• 5 times

• 6 times