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Understanding Measures of Position

Authored by Bernadette Dequinco

Mathematics

10th Grade

Used 1+ times

Understanding Measures of Position
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define quartiles in your own words.

Quartiles are the average of the highest and lowest values in a dataset.

Quartiles are values that divide a dataset into two equal parts.

Quartiles are the middle values of a dataset when arranged in ascending order.

Quartiles are values that split a dataset into four equal parts.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the third quartile (Q3) from a data set?

Q3 is the average of the entire data set.

Q3 is the median of the upper half of the data set.

Q3 is the first quartile of the data set.

Q3 is the minimum value of the data set.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the difference between deciles and quartiles.

Deciles are used for categorical data; quartiles are used for continuous data.

Deciles and quartiles both divide data into equal parts but use different methods.

Deciles divide data into five parts; quartiles divide data into three parts.

Deciles divide data into ten parts; quartiles divide data into four parts.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the 90th percentile of the following data set: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19?

17

13

15

19

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define percentiles and give an example.

Percentiles are only applicable to normally distributed data.

An example of a percentile is the 100th percentile, which is the maximum value in a dataset.

The 50th percentile is the value above which 50% of the data points lie.

An example of a percentile is the 90th percentile, which is the value below which 90% of the data points in a dataset lie.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the second quartile (Q2) in a data set?

Q2 is the average of the data set.

Q2 is the median of the data set.

Q2 is the highest value in the data set.

Q2 is the range of the data set.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the 25th percentile of a data set?

Calculate the mean of the data set.

Identify the maximum value in the data set.

Find the median by sorting the data.

Sort the data, then find the value at the position calculated by (N + 1) * 0.25.

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