Making Predictions

The table shows the results of a school survey about favorite frozen yogurt flavors. If there are 432 students in the school, predict how many would select vanilla or strawberry as their favorite flavor.

• 72 students

• 126 students

• 198 students

• 942 students

Tags

CCSS.7.RP.A.3

Mama Mia’s Pizzeria had random customers sample their new spaghetti sauce. Of the customers that sampled the new sauce, 42% liked the new sauce, 37% liked the old sauce, and 21% could not tell a difference. Based on this information, how many of their 1,250 customers will like the new spaghetti sauce?

• 2,976 customers

• 525 customers

• 462 customers

• 262 customers

Tags

CCSS.7.RP.A.3

The table shows the results of a survey for an election for class president. Based on the data, if there are 336 students voting, approximately how many more will vote for Allie than for Olivia?

• 42 students

• 98 students

• 112 students

• 140 students

A fisherman took a sample of fish with a large fishing net from a lake. In the net there were 15 bass, 12 trout, 8 blue gill, and 11 catfish. There are an estimated 10,000 fish in the lake. Based on the sample, how many of those fish are catfish?

• 1,789 catfish

• 2,391 catfish

• 2,981 catfish

• 7,459 catfish

Tags

CCSS.7.RP.A.3

Bessie has a bag of 300 marbles. She grabbed a handful of marbles from the bag. There were 1 red, 4 orange, 2 purple, and 3 green marbles in her hand. Based on the sample, how many red and orange marbles are in the bag?

• 30 marbles

• 120 marbles

• 150 marbles

• 200 marbles

Tags

CCSS.3.OA.A.3

A baby giraffe was born at a zoo. Each visitor during the week voted on the name of the baby giraffe. The results of the first day are shown in the table. If there are 2,500 visitors that will get to vote, approximately how many votes will be for the name Talia?

• 735 votes

• 850 votes

• 1,650 votes

• 2,125 votes

The city council is trying to decide if a stoplight should be installed at an intersection. Of the people polled, 124 do not want a stoplight installed, 514 want a stoplight installed, and 87 people are indifferent. If there are 15,800 people in the city, predict how many more people would want a stop light compared to the number who would not want a stoplight.

• 390

• 806

• 8,500

• 9,306

The manager of a landscaping company randomly selected a sample of receipts from last year and found that 17 customers bought azaleas, 26 customers bought pansies, and 7 customers bought geraniums. Based on the sample, estimate how many of the 4,750 customers last year bought azaleas and geraniums.

The table shows the results of a random survey taken at an amusement park in which they asked guests that had previously visited the park before, to name their favorite ride. Based upon the results of this survey, what inference can you make about the entire population of visitors at the amusement park that day?

• The Green Dragon is the least popular ride.

• The King Canyon was exactly twice as popular as the Monte Carlo.

• The Ellipse is the most popular ride, with more than half of those surveyed choosing it as their favorite ride.

• One-third as many people chose the Monte Carlo as chose The Green Dragon.

Demitra set out a bowl of lollipops at the credit union. The table shows the amount of each flavor of lollipop with which she started the day and the number of each flavor remaining at the end of the day. What is an inference you can not make about the general population of credit union members based upon this sample?

• Blue Raspberry is the most popular flavor.

• Cola is the least popular flavor.

• About 50% of her members chose cherry as their favorite flavor.

• At the end of the shift, 20% of the cotton candy lollipops remained.