Making Inferences Predictions and Drawing Conclusions Pictures

The results of a random survey about a person's favorite pet is shown in the table. Based on the information in the table, which inference about the favorite pet of the general population appears to be valid?

• It is certain that a person will choose Dog as their favorite pet

• It is less likely a person will choose Dog than Cat or Fish

• It is more likely a person will choose Fish or Bird than Cat

• Dogs are liked more than all other animals combined

Tags

inferences

tables

teks 7.12B

A random survey of people at the mall was taken to determine favorite color. The results are shown in the circle graph. Based on the information in the graph, which inference about the general population is valid?

• It is more likely someone will choose Blue than Red or Pink

• It is certain that someone will NOT choose Black

• It is less likely someone will choose Red than Green, Pink, or Purple

• More people like Blue than all other colors combined

Tags

inferences

circle graph

pie chart

teks 7.12B

The bar graph shows the results of a random survey of people about their favorite fruit. Based on the information in the graph, which inference about the general population is valid?

• More men than women like apples

• More men like bananas than women like strawberries

• More women like strawberries than men who like apples

• It is certain that a woman will choose strawberries

Tags

inferences

bar graph

teks 7.12C

The results of a random survey of students about their favorite extracurricular activity are shown in the graph. Based on the information in the graph, which inference about the general population of students is valid?

• Less Boys like Choir than Girls like No Activity

• More Girls than Boys like Band

• Girls like Choir more than Boys like Sports

• An equal amount of Boys and Girls like Band

Tags

inferences

bar graph

teks 7.12C

A poll was taken of Hobby Middle School, 25 out of 30 students said they would prefer pizza on Friday’s. Out of 1200 students, what is a reasonable prediction of how many students would prefer pizza on Fridays?

• 100

• 1000

• 10

• 1

Pizza Hut surveyed a random sample of students to determine what pizza they prefer. Cheese pizza was preferred by 40 students. Pepperoni pizza was preferred by 28 students. Based on the results, how many of the 340 students in the 9th grade can be expected to prefer cheese pizza?

A box of 25 lightbulbs is shipped to a hardware store. When it arrives, four of the bulbs are broken. Predict the number of broken lightbulbs in an order of 125 bulbs.

*NOTE: enter your answers as a number ONLY.

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.

A principal randomly chooses 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?

• 27

• 9

• 18

• 80

Making a prediction in statistics is a

• random guess

• 100% accurate fact

• using a magic 8 ball

• using previous information to determine how likely something is to happen