Percentiles and Z-scores

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.6.SP.A.2

CCSS.6.SP.B.5

CCSS.6.SP.A.3

CCSS.6.SP.A.1

Given the data set: 1, 2, 3, 6, 9, 11, 45, 102, calculate the percentile for the data value 11 in this set.

• 70^th percentile

• 62.5^th percentile

• 72.5^th percentile

• 75^th percentile

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

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

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

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

• 33rd

• 15th

• 27th

• 25th

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

CCSS.6.SP.A.3

What is the PERCENTILE for the data value of 30 in the given data set.

• 80th

• 75th

• 93rd

• 87th

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

CCSS.6.SP.A.3

Here are the weights (in pounds) of 10 puppies: 4 4 5 7 8 8 8 10 12 13 What is the percentile of a 5 pound puppy?

• 30th percentile

• 20th percentile

• 70th percentile

• 30th percentile

Tags

CCSS.6.SP.A.2

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

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

CCSS.6.SP.A.3

If your doctor tells you that your height puts you in the 70th percentile, you will know that you are taller than __________ percent of people your age.

• 30

• 70

• 100

• 40

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

A student recently took the SATs and their score correlated to the 60th percentile. This means that ______________ percent of all students score at or higher than the score the student received.

• 60

• 40

• 20

• 100

Tags

CCSS.HSF.IF.B.4

The data below represents the scores students received on a recent Statistics quiz. Calculate the percentile for a student that scored 24 points.

15, 18, 19, 20, 21, 21, 22, 22, 24, 25

• 20th

• 80th

• 90th

• 99th

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5