Percentiles, Mean, and Standard Deviation

If I tell you that you scored at the 55th percentile on your final exam, you would know:

• 55% of the class scored the same or worse than you did

• You earned a 55% on the exam

• You failed the exam

• 45% of the class scored worse than you did

Tags

CCSS.HSS.IC.A.1

What is the percentile of the value 74 in the following group of 15 data values? 23, 30, 35, 55, 61, 65, 68, 69, 70, 74, 80, 85, 90, 100, 100

• 73rd

• 67th

• 75th

• 60th

What is the PERCENTILE for the data value of 20 in the given data set.

• 33rd

• 15th

• 27th

• 25th

Tags

CCSS.HSS.ID.A.4

What is the score for something in the 87th PERCENTILE of the given data set.

• 17

• 28

• 32

• 30

Tags

CCSS.HSS.ID.A.4

Find the 46th percentile of this set of 11 values

5, 12, 16, 18, 22, 25, 30, 31, 32, 33, 39

• 5.06

• 5

• 22

• 25

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Assume the average daily temperature for the first 30 days of March has a mean of 48 and a standard deviation of 8. If the temperature on March 31 is 62, then the mean will...

• Go up

• Go down

• Stay the same

Tags

CCSS.HSS.ID.A.4

Assume the average daily temperature for the first 30 days of March has a mean of 48 and a standard deviation of 8. If the temperature on March 31 is 62, then the standard deviation will...

• Go up

• Go down

• Stay the same

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

Assume the average daily temperature for the first 30 days of March has a mean of 48 and a standard deviation of 8. If the temperature on March 31 is 48, then the mean will...

• Go up

• Go down

• Stay the same

Assume the average daily temperature for the first 30 days of March has a mean of 48 and a standard deviation of 8. If the temperature on March 31 is 48, then the standard deviation will...

• Go up

• Go down

• Stay the same

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4