Probability Prediction

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.2C

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

A bag contains:-5 red marbles-6 blue marbles-3 green marbles-4 black marbles-2 yellow marbles
A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?

• 14
• 65
• 7
• 35

A principal randomly chose 40 students from grade 5. Of these students, 9 were wearing watches. Based on this information, what is the most reasonable prediction of the number of students wearing watches in a group of 120 students from grade 5?

• 27
• 9
• 18
• 80

Tags

CCSS.7.RP.A.3

While standing outside of the school waiting to go home, you notice that 3 out of every 12 students leaving school are on their cell phones. What is the probability that the next student leaving school will NOT be on his or her cell phone?

• 25%

• 30%

• 75%

• 70%

Yesterday, a bakery baked 75 loaves of bread in 20 minutes. Today, the bakery needs to bake 375 loaves of bread.  At the rate, predict how long it will take to bake the bread.

• 1.5 hours
• 2.3 hours
• 3.0 hours
• 3.75 hours

Tags

CCSS.6.RP.A.3B

These 12 shapes are put into a bag.  If you reach into the bag 60 times, replacing the shape after each time, predict how many times you would pull out a circle.

• 15 times
• 20 times
• 25 times
• 30 times

There are 20 marbles in the jar.

What is the probability of choosing a marble that is NOT green from the jar?

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• 10/20

• 5%

• 10%

• 0.5

In a survey, 100 middle school students were asked which social media platform they preferred. The results are shown in the table above.

What is the probability that a student prefers TikTok?

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• 72 out of 100

• 72%

• 0.72

• 72/100

100 second graders were asked to do a book report about one of these four zoo animals.  The number of students who chose each animal is shown in the table.  If 250 second graders had to choose of of the four animals, predict how many would choose to write about a giraffe.

• 60 students
• 50 students
• 40 students
• 30 students