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Position Percentiles

Authored by Randy Enriquez

Mathematics

10th Grade

Used 2+ times

Position Percentiles
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula to calculate the nth percentile in a data set?

(n + 1) / P

(P/100) * (n + 1)

n * (P/100)

(n - 1) * P

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a data set has 50 values, what value represents the 25th percentile?

Average of the 12th and 13th values

Sum of the first 25 values

Median value

Average of the 20th and 21st values

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a data set of exam scores, if the 90th percentile is 85, what does this mean?

85% of the exam scores are below 90 and 10% are above 85.

85% of the exam scores are above 90 and 10% are below 85.

90% of the exam scores are below 85 and 10% are above 85.

90% of the exam scores are below 85 and 10% are below 85.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the median related to the 50th percentile?

The median is the 50th percentile.

The median is the 75th percentile.

The median is the 25th percentile.

The median is the 90th percentile.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the 75th percentile of a data set is 60, what percentage of values are below 60?

90%

80%

50%

75%

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the concept of quartiles in relation to percentiles.

Quartiles divide a dataset into three equal parts, not four.

Quartiles divide a dataset into four equal parts, where Q1 is the 25th percentile, Q2 is the 50th percentile (median), and Q3 is the 75th percentile.

Quartiles are only relevant for normally distributed data.

Quartiles are the same as percentiles and can be used interchangeably.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the 10th percentile of a data set is 20, what does this indicate?

The data set has a standard deviation of 20.

10% of the data values are below 20.

The data set has a mean of 20.

20% of the data values are below 10.

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