Inference of Sample Population

A school newspaper conducted a survey of randomly selected middle school students about their favorite sport. The table shows the results of the survey.

 

 

 

Which inference about the students surveyed is best supported by this data? (7.12B, SS).

• The number of students who chose basketball or tennis as their favorite sport is less than the number who chose baseball.

• The number of students who chose basketball as their favorite sport is greater than the number who chose golf.

• The number of students who chose football as their favorite sport is greater than the number who chose hockey.

• The number of students who chose baseball as their favorite sport is less tan the number who chose tennis or golf.

Tags

CCSS.7.SP.A.2

The school counselors conducted a survey of randomly selected seventh and eighth graders about the way the students get home from school. The graph shows the results of the survey. 

 

 

Based on the results, which of the following does NOT represent the data? (7.12B, SS). 

• 60% of the 8^th graders rode the bus home.

• A total of 50 students were surveyed.

• Exactly half of the students surveyed rode the bus.

• The number of car riders and walkers in 8^th grade is equal to the number of car riders in 7^th grade.

Tags

CCSS.3.MD.B.3

The table shows the results of a survey of students from West Middle School about their plans for summer vacation.

 

If there are 900 students at West Middle School, how many more students would you expect to stay home than go on a cruise for summer vacation?  (7.12B SS).

• 306

• 162

• 468

• 630

Tags

CCSS.7.SP.A.2

Nye Elementary School cafeteria is considering changing the menu from pizza to sub sandwiches. Which of the following best describes a random sample?

• All the students in Mrs. Aguilar’s class are surveyed.

• Twenty randomly selected fifth graders are surveyed.

• Fifty randomly selected staff members are surveyed.

• Fifty students’ name are drawn form a hat.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

  

The graph shows the number of students in each grade at a middle school who bought spirit ribbons for a football game.

Based on the data, which statement is supported by the information in the graph? (7.12B-SS)

• Less than 700 students at this middle school bought spirit ribbons.

• The same number of boys from 6^th, 7^th, and 8^th grade bought spirit ribbons as the girls from 6^th, 7^th and 8^th grade at this middle school.

• About 350 boys bought spirit ribbons at this middle school.

• Approximately the same number of 6th grade students bought spirit ribbons as 7th grade students bought spirit ribbons at this middle school.

Tags

CCSS.8.SP.A.4

Which statement is true about the data shown in the dot plot? (7.6G-RS)

• The median of the data is 8.5 because it is the average of the two middle data points.

• The median of the data is 6.5 because it is the average of the two middle data points.

• The range of the data is 4 because it is the difference between the first and last data points.

• There is no mode of the data because all the data values are different.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

The diagram shows the net of a square pyramid and its dimensions.

 

What is the total surface area of the pyramid in square feet?

Tags

CCSS.6.G.A.4

Sebastian conducted a random survey at the mall to determine the number of songs in each genre that were downloaded by 40 students. The results are shown in the bar graph.

 

 

 

Based on the information in the graph, which inference about the general population of students is valid? (TEKS 712B SS)

• Girls like country music more than all other genres combined.

• More girls than boys like rock music.

• Boys like country music more than rock music.

• Boys like rock music more than girls like rap music.

Tags

CCSS.7.SP.A.2

The table shows the results form a random sample of students from Washington Middle School about their summer plans.

Based on this information, what are the most likely summer plans of a randomly selected student at Washington Middle School? (7.12B SS)

• Working at a job

• Traveling

• Studying

• Attending camp

Tags

CCSS.7.SP.A.2

The number of assignment questions given by two teachers were sampled.

Which statement is NOT supported by the data?

• Neither teacher typically gives more than ten questions per assignment.

• Mr. Reyna tends to give more consistent number of questions.

• Mr. Alarcon tends to ask harder questions.

• Mr. Reyna tends to give more questions per assignment.