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Using the data below determine What is the percentile rank for a house with a lead...

Using the data below determine

What is the percentile rank for a house with a lead score of a. 4 b. 7 c. 2 I NEED SOME TYPE OF PROCEDURE!!!!

Neighborhood 1: 2 2 4 3 1 0 2 1 3 2

Neighborhood 2: 8 6 7 6 9 5 6 6 9 8

Neighborhood 3: 4 3 5 0 8 7 4 6 1 8

Math   Statistics-And-Probability   
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Answer #1

Percentile Rank is percentage of scores that equal to or less than a given value or given score.

It is calculated by formula as:

R = P / 100*(N + 1)

where R = Percentile Rank

          P = Percentile and

          N = Number of items

For given data values Percentile Rank can be calulated as below:

a) Percentile Rank for 4 = 4/100*(10+1) = 0.44

b) Percentile Rank for 7 = 7/100*(10+1) = 0.77

c) Percentile Rank for 2 = 2/100*(10+1) = 0.22

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