Measures of Center & Spread

What is the IQR?

• 5.5
• 4
• 4.5
• 6

Tags

CCSS.7.EE.B.3

How many modes can you have in a data set?

• Zero
• One
• Two
• All the above

What is the outlier in this data set?
{23, 60, 30, 21, 25, 35, 29}

• 35
• 21
• 30
• 60

What is the median?

• 3
• 2
• 1
• 5

How do you find the Interquartile Range?

• divide the 3rd quartile by the 1st quartile
• subtract the biggest number by the smallest number
• divide the biggest number by the smallest number
• subtract the 3rd quartile by the 1st quartile

To find the average of a set of numbers, add up all the items and divide by...

• 2
• The minimum
• The maximum
• The number of items

Tags

CCSS.7.EE.B.3

A data set can have more than one median?

• True
• False

Tags

CCSS.7.NS.A.3

Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have.
1,0,1,5,6,3,4

• 3.33
• 2.85
• 3
• 3.5

Tags

CCSS.4.MD.B.4

The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 99 was the highest score on the test.
• More students received a 94 than any other score
• No student scored below a 50
• A score of 91 was slightly below average.

The table displays the frequency of scores on a 10 point quiz.  Find the median of the scores.

• 7
• 8
• 9