Sampling and Measures of Center

1. A sample in which every person, object, or event has an equal chance of being selected.

• A. Random sample.
• B. Biased sample.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

2. When a sample does not accurately represent the population it is a:

• A. Unbiased sample
• B. Biased sample

Tags

CCSS.7.SP.A.1

3. A public library asked every 10th person who entered to name the type of book they were getting.

• A. Biased
• B. Unbiased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

4.  Carlos wants to know the favorite sport of people at his school so he asks his baseball team.

• A. Biased
• B. Unbiased

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

11. Larger random sample sizes are more representative of a population.

• A. True
• B. False

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

12. Which random sample is the more likely it is to represent the population of a Jupiter Middle School  accurately?

• A. Five students of a school.
• B. Five hundred students of a school.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours.  What is the population?

• People who visit the bookstore.
• People who buy mystery novels.
• Residents of the town
• People who like to read.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

When finding the median what is the FIRST step?

• Mark off the lowest number
• Mark off the highest number
• Find the Middle
• Arrange the number from Least to Greatest

Tags

CCSS.6.NS.C.7

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

• 13
• 12
• 11
• 10

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Use the table to find the mean

• 105
• 111
• 118
• 130

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5