Question

On an exam, Mafuyu scored in the 20th percentile. If there were 50 students in the class, how many students scored lower than he did?

Answer 1

Using the percentile concept, it is found that 10 students scored lower than he did.

What is the meaning of the percentile of a measure?

When a measure is in the xth percentile of a data-set, it is greater than x% of the measures and lesser than (100 - x)%.

In this problem, he scored on the 20th percentile, that is, higher than 20% of the 50 students. Then:

0.2 x 50 = 10.

10 students scored lower than he did.

More can be learned about percentiles at https://brainly.com/question/24495213

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