Mod 4 Probability- 1D- Predicting with Probability

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

Tags

CCSS.5.OA.B.3

The probability of a video game being defective is 1 out of 20.  About how many video games would be defective in a shipment of 490 video games? (Round your answer to the nearest whole number.)

• 490
• 25
• 98
• 100

Tags

CCSS.7.SP.C.6

The results of a random survey showed that 42 out of 84 people plan to vote for Coach Vasquez for teacher of the month. Which is the best prediction of the total number of votes he will receive if 2,000 people vote?

• 825
• 750
• 1200
• 1000

Tags

CCSS.6.RP.A.3B

Marco spun this spinner 20 times. How many times would you predict he landed on red?

• 10

• 20

• 5

• 6.666

Tags

CCSS.7.SP.C.6

The probability of a table-tennis ball being defective is 1 out of 10 . About how many balls would be defective in a case of 725 table-tennis balls? (Round your answer to the nearest whole number.)

• 73
• 125
• 80
• 310

Tags

CCSS.7.SP.C.6