Probability - Prediction 1

What is the experimental probability of tails?

• 65%

• 35%

• 100%

• 00%

What is the experimental probability of red?

• 1/3

• 1/5

• 7/15

• 1/30

If the spinner is spun 80 times, how many times would it land on yellow? (hint:set up a proportion)

• 10

• 20

• 30

• 40

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

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

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7