Statistics Test Review

Holly wanted to conduct a survey to find the most popular ice cream flavor at Ye Old Fashioned. She decided to survey all the girls sitting in Ye Old Fashioned yesterday. Is this sample representative of all customers?

• Yes, it asks all the girls present in the restaurant.

• Yes, the sample is restricted to only the girls there yesterday.

• No, the sample is only about ice cream flavors.

• No, it only asks girls.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A video game company wants to find out if their games are popular among 18-22 year olds. Which population would be the BEST to survey?

• A group of students at a college.

• A group of students in a middle school.

• A group of people in a grocery store.

• A group of people in a nursing home.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Mr. Wilkerson, the principal wants to know how most students get to school. Which sample would be considered a BIASED sample?

• Every 10th student entering the cafeteria.

• Every 10th student getting off of a bus.

• Every 5th student from an alphabetical list of all students.

• Two students chosen randomly from every homeroom.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Josh wants to identify the most popular restaurant in Moncks Corner for a math project. He will survey 200 people. Which of the following plans will result in UNBIASED results for his project?

• He should ask all of the boys in the 7th grade at BMS.

• He should ask every 10th customer leaving Applebee’s.

• He should ask a group of waiters from El Maguey’s Mexican Restaurant.

• He should ask every 10th customer entering the library.

Tags

CCSS.HSS.IC.B.3

Which of the following would be the best way to estimate the average number of songs a sixth grade student in your school downloads each month?

• Survey 100 sixth grade students in your school

• Survey 2 sixth grade students in your school

• Survey half of the seventh grade students in your school

• Survey 100 seventh grade students from two different middle schools

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Which of the following statements is true?

• Group 1 has a LOWER median score

• 0 – 60 mph represents 75% of group 1’s speed

• Group 2 has a larger range

• Group 1 has a higher maximum speed than group 2

Tags

CCSS.7.SP.B.4

In which quartile, in group 2, were the scores most varied?

• Quartile 1

• Quartile 2

• Quartile 3

• Quartile 4

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

In which quartile, in group 2, were scores the least varied

• Quartile 1

• Quartile 2

• Quartile 3

• Quartile 4

Tags

CCSS.7.SP.B.4

Which of the following statements is true?

• 50% of group 2 is below 75mph

• 50% of group 1 is higher than 60mph

• 100% of group 2 is less than 105mph

• The minimum speed of group 1 is higher than group 2

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

In which quartile, in group 1, were scores the least varied

• Quartile 1

• Quartile 2

• Quartile 3

• Quartile 4

Tags

CCSS.7.SP.B.4