Percentiles Practice

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

• 55% of the class scored as good or worse than I did 
• I earned a 55% on the exam
• I failed the exam
• 45% of the class scored worse than I did 

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CCSS.6.SP.A.2

CCSS.6.SP.B.5

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

• 70
• 62.5
• 72.5
• 75

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CCSS.6.SP.A.2

The 75th percentile is also know as the

• median
• third quartile
• 1st quartile`
• interquartile range

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CCSS.6.SP.A.2

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CCSS.6.SP.B.4

CCSS.6.SP.B.5

What is the interquartile range of the following data set:  25, 28, 36, 42, 45, 50, 50, 52, 58, 63, 64

• 39
• 50
• 36
• 22

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What percentile is 74 in the following group of data (must be in order)?35, 65, 68, 100, 23, 69, 74, 70, 61, 90, 85, 55

• 60th
• 90th
• 75th
• 27th

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CCSS.6.SP.A.2

CCSS.6.SP.B.5

What is the 50th percentile of the following student heights:  60 in, 75 in, 70 in, 58 in, 62 in

• 58
• 70
• 75
• 62

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CCSS.6.SP.A.2

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CCSS.6.SP.B.5

Below is a list of weights of 10 puppies, determine the percentile of a 5 pound puppy. 
2, 3, 3, 4, 4, 5, 5, 5, 6, 7

• 80th Percentile
• 70th Percentile
• 50th Percentile 
• 7th Percentile

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CCSS.6.SP.A.2

Anna and her brother are both 62 inches tall. Anna is in the 85th percentile for height for her age and her little brother is in the 90th percentile. Who is taller for their age?

• They're the same, both 62 inches.
• Anna, she's taller than more people. 
• Brother, he's taller than more people. 
• You can't tell if you don't know the mean and standard deviation. 

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CCSS.6.SP.A.2

CCSS.6.SP.B.5