Unit 5 Review - Statistics & Measure of Center - Practice

What is the size of the sample?

• 36

• 39

• 60

• 21

Tags

CCSS.6.SP.B.5A

If the convenience store manager expects to sell 540 pieces of candy next week, which is the best prediction of how many Reese’s they should have in the store?

• 108

• 135

• 81

• 216

Which of the following box-and-whisker           plots has a range of 36?

• Data set A

• Data set B

• Data set C

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

 The box-and-whisker plot shows the profits for two different companies (in millions of dollars).  Find the median profit for both companies.

• 18.5, 18

• 5.5, 5

• 15, 12

• 27, 24

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Which of the following statements is true?

• The median age of women is greater than men.

• The median age of both women and men are the same.

• The lower quartile for the ages of men is greater than the upper quartile for the ages of women.

•  The range of women's ages is greater than the range of means’ ages.

Tags

CCSS.HSS.ID.A.3

Compare the interquartile ranges (IQR) of the two box-and-whisker plots. Choose the statement that best describes the relationship.

• The IQRs are the same for both women and men ages.

•  The IQR for men is greater than the IQR for women.

• The IQR for women is greater than the IQR for men.

•   The IQR for both categories cannot be determined.

Tags

CCSS.7.SP.B.4

A librarian chooses 100 books from the library’s database using every third book in the data base to calculate the average length of a library book.

Would this be an example of a random sample or a biased sample?

• random sample

• biased sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The first 50 people exiting a movie are surveyed to find out what type of movie the people in town like to see.

Would this survey make a random sample or a biased sample?

• random sample

• biased sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Trey and Jason are training to run a marathon.  They have been running for 9 days and        recorded how many miles they each ran.  Their results are listed below as Sample A:  Trey        and Sample B:  Jason.

• Sample A, Trey Mean = 4.78 miles

  Sample B, Jason Mean = 7.33 miles

• Sample A, Trey Mean = 4.00 miles

  Sample B, Jason Mean = 7.00 miles

• Sample A, Trey Mean = 6 miles

  Sample B, Jason Mean = 8 miles

• Sample A, Trey Mean = 4.42 miles

  Sample B, Jason Mean = 7.22 miles

Tags

CCSS.7.NS.A.3

The Stem and Leaf Ploth in the picture is visually __________.

• Skewed Right

• Symmetric

• Skewed Left

• Unable to Determine