Central Tendency and Dispersion Challenge

Central Tendency and Dispersion Challenge

University

6 Qs

quiz-placeholder

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Central Tendency and Dispersion Challenge

Central Tendency and Dispersion Challenge

Assessment

Quiz

English

University

Practice Problem

Hard

Created by

zeina akiki

Used 6+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A study was conducted to record the weights (in kilograms) of 9 children.

The recorded weights were as follows:

16, 17, 18, 18, 21, 20, 22, 23, 38

What is the sample median weight?

21

18

20

23

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes what the median represents in a dataset?

The most frequently occurring observation in the sample

The average value

Half of the observations are less than or equal to the median, and half are greater than or equal to it

The largest value in the sample

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a skewed distribution, which measure is less affected by outliers?

Mean

Median

Mode

Range

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which measure of dispersion is defined as the average of the squared differences from the mean?

Variance

Range

Mean Absolute Deviation

Standard Deviation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

If a dataset has the following distribution, which measures of central tendency and dispersion are preferred?

Mean & SD

Mean & IQR

Median & SD

Median & IQR

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A study was conducted to record the weights (in kilograms) of 9 children.

The recorded weights were as follows:

16, 17, 18, 18, 21, 20, 22, 38, 23

What is the IQR?

22

5

12.5

21