AS Algebra 2: Unit 8 Lessons 1-4 Quiz Review

What is the first step to finding the median of a set of numbers?

• Finding the one in the middle

• Finding the smallest value

• Listing the values from least to greatest

• Finding the one you see the most

Tags

CCSS.6.SP.B.5C

When finding the median, what do you do if there are two middle numbers?

• Find their mean (add them and divide by 2)

• Write them both as the answer

• Give up

• Pick one

Tags

CCSS.6.SP.B.5C

Here is a list of numbers.

8 6 4 5 9 8

Find the median

(a)  

Tags

CCSS.6.SP.B.5C

3, 4, 5, 5, 5, 6,7
The mode of these numbers is

• 5
• 10
• 4
• 1

Tags

CCSS.6.SP.B.5C

Can there be more than one mode?

• Yes
• No

Tags

CCSS.6.SP.B.5C

What is an outlier?

• A value that is much less or much greater than the other values in a data set.
• The difference between the upper and lower quartiles of a data set.
• The mean of the distances from each data value in a set to the mean of a set.
• The difference between the greatest and least numbers in a data set.

An OUTLIER in a set of data is a number that is far away from the rest of the numbers.

Identify the OUTLIER in this data set.

5, 8, 10, 11, 15, 53

• 5

• 53

• 0

• 15

What measure of central tendency (mean, median or mode) would be best for the following set of data?

0, 89, 92, 97, 99, 100

• Mode, because it is the one that shows up the most.

• Median, because there is an outlier. The outlier would influence the mean too much.

• Mean, because you should always use the mean.

• There is not a best measure of central tendency for this data.

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

The temperature received till Friday was 34, 38, 36, 30 and 31. If the temperature on Saturday drops to 11^oC, how does the inclusion of Saturday's temperature affect the weekly mean temperature?

• increase

• decreases

• does not change

• can not be determined

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

• 193

• 127

• 60

• 66

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1