Predictions Using Probability

If the spinner below was spun 100 times, about how many times would you expect the spinner to land on red?

• 20

• 25

• 15

• 35

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

If the spinner below is spun 12 times, how many times can you expect the spinner to land on R?

• 6

• 8

• 12

• 3

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

If the spinner below is spun 16 times, how many times can you expect the spinner to land on the number 3?

• 4

• 2

• 16

• 3

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Each face on a standard die shows a number, 1, 2, 3, 4, 5, or 6. If the die is tossed 30 times, how many times would you expect to get a 3?

• If I toss a die 30 times I expect to get the number 3, 20 times

• If I toss a die 30 times I expect to get the number 3, 10 times

• If I toss a die 30 times I expect to get the number 3, 15 times

• If I toss a die 30 times I expect to get the number 3, 7 times

Tags

CCSS.7.SP.C.5

If a coin is tossed 100 times, about how many times should the coin turn up tails?

• If I toss a coin 100 times then I should land on tails 25 times

• If I toss a coin 100 times then I should land on tails 45 times

• If I toss a coin 100 times then I should land on tails 55 times

• If I toss a coin 100 times then I should land on tails 50 times

The following table shows the results of a survey in which 50 people were asked to name their favorite sport.

Based on these results, how many people out of 1000 would you expect to pick soccer as their favorite sport?

• 240

• 120

• 250

• 225

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Tom solved 9 out of the 15 practice questions for a test correctly. If the actual test is 35 questions, how many can Tom expect to solve correctly?

• In the actual test Tom is expected to solve 21 questions correct

• In the actual test Tom is expected to solve 25 questions correct

• In the actual test Tom is expected to solve 12 questions correct

• In the actual test Tom is expected to solve 15 questions correct

An inspector at a calculator factory found 3 out of 100 calculators did not work properly. If the factory produces an order of 5000 calculators, how many might be expected to NOT work properly?

• 150

• 15

• 300

• 250

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.SP.B.4

If 1 out of every 5 Americans ride to work with a car pool, how many people out of 2,000 would be expected to carpool?

• 500

• 400

• 300

• 200

An envelope contains 3 different colored cards. Tyler reached in, pulled out a card, recorded the color, and put the card back. He did this 50 times.

Based on these results, what is the best prediction as to the number of green cards he would pick in 100 times?

• 50

• 25

• 100

• 75