Unit Test #45

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:

 

Which of the following, gives an indication of the spread of a set of values? A. standard deviation
B. quartiles
C. range
D. all of the above
Answer 1:

 

Q2:

 

What is the range of 8.2, 6.4, 4.5, 7.2, 9.6 and 6.9? A. 7.1
B. 42.8
C. 5.1
D. 9.6
Answer 2:

 

Q3:

 

What is the upper quartile of: 15, 3, 7,10, 9, 13, 1? A. 3
B. 7
C. 10.75
D. 13
Answer 3:

 

Q4:

 

What is the lower quartile of the numbers:

15, 6, 4, 3, 8, 9, 3?

A. 3
B. 3.5
C. 4
D. 9
Answer 4:

 

Q5:

 

The lower quartile is the equivalent of the 75th percentile.

A. True
B. False
Answer 5:

 

Q6:

 

  

Which score is the median of the 20 golf scores?

A. 71 
B. 72
C. 73
D. 74
Answer 6:

 

Q7:

 

Use a calculator to find the standard deviation of the set of numbers:

4, 6, 9, 10, 12

A. 9
B. 8
C. 2.9
D. 1.7
Answer 7:

 

Q8:

 

For the data: 7, 11, 4, 7, 10, 8, 5, 20

What is the median?

A. 7
B. 7.5
C. 8
D. 9
Answer 8:

 

Q9:

 

What is the lower quartile in question 8? A. 5
B. 6
C. 6.5
D. 7
Answer 9:

 

Q10:

 

What is the interquartile range in question 8? A. 4.5
B. 16
C. 3
D. 6
Answer 10: