Measures of center and spread practice

Find the mean.
90, 100, 95, 85, 60, 80

• 85
• 84
• 86
• 90

Tags

CCSS.6.SP.B.5C

What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7

• 7
• 20
• 7 & 14
• none of the above

Tags

CCSS.6.SP.B.5C

Mrs. Jones surveyed the class for the number of letters in their given first name. The data is recorded below.
{5, 8, 6, 5, 4, 9, 8, 7, 6, 3, 8, 7, 5, 6, 7, 8}
What is the interquartile range of the data?

• 2
• 3
• 7
• 8

Tags

CCSS.6.SP.B.5C

Which has a lower IQR? (Interquartile Range)

• Florida

• Texas

Tags

CCSS.7.SP.B.4

Summarizes data using a single number.  The single number is found by finding the sum of the data divided by the number of pieces of data.

• Median 

• Range

• Mean

• Mode

Tags

CCSS.6.SP.A.3

The distance between the greatest number and the least number in a set of data.

• Mean 

• Median

• Range

• Mode

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193

• 127

• 60

• 66

Tags

CCSS.6.NS.B.3

A data set is shown below.
56, 64, 73, 59, 98, 65, 59
If the outlier is removed from the data set, which measure of central tendency will be least affected?

• range

• mode

• median

• mean

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

How many modes can you have in a data set?

• Zero

• One

• Two

• All the above

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

The prices at several different stores for a pair of shoes are shown below.
$78, $79, $81, $82, $83
Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• Only the range was affected.

• The median increased, and the range increased.

• The mean increased, and the range increased.

• The mean decreased and the range increased.