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Measures of Central Tendency MCQ

A measure of variation for interval-ratio and ordinal variables; it is the average of the squared deviations from the mean is called variance

True

False

Answer

Correct Answer: True

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Symmetrical distribution is the The frequencies at the right and left tails of the distribution are identical; each half of the distribution is the mirror image of the other.

True

False

Answer

Correct Answer: True

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A measure of variation for interval-ratio and ordinal variables; it is equal to the square root of the variance is standard deviation

True

False

Answer

Correct Answer: True

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A distribution with a few extreme values on one side of the distribution is skewed distribution

True

False

Answer

Correct Answer: True

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A measure of variation in interval-ratio variables is called

Mean

Median

Mode

Range

Answer

Correct Answer: Range

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A distribution with a few extremely high values is positively skewed distribution

True

False

Answer

Correct Answer: True

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_____ is the score below which a specific percentage of the distribution falls.

Range

Percentile

Average

Mean

Answer

Correct Answer: Percentile

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A distribution with a few extremely low values is negatively skewed distribution

True

False

Answer

Correct Answer: True

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The category or score with the highest frequency (or percentage) in the distribution of main points is called

Mean

Median

Mode

All of these

Answer

Correct Answer: Mode

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The score that divides the distribution into two equal parts so that half the cases are above and half below is called

Mean

Median

Mode

All of these

Answer

Correct Answer: Median

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Numbers that describe diversity or variability in the distribution.is measures of variability

True

False

Answer

Correct Answer: True

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Numbers that describe what is average or typical of the distribution is measure of central tendency

True

False

Answer

Correct Answer: True

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A measure typically used to describe central tendency in interval-ratio variables is called

Mean

Median

Mode

All of these

Answer

Correct Answer: Mean

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Interquartile range is defined as the difference between the lower and upper quartiles (Q1 and Q3).

True

False

Answer

Correct Answer: True

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Consider the following distribution of scores: 5, 8, 2, 6, 4. What is the value of the mean?

Answer

Correct Answer: 5

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In a negatively skewed distribution, which of the following is true?

The mean is less than the median.

The median is approximately equal to the mean.

The median is less than the mean.

The mean is greater than the median.

Answer

Correct Answer: The mean is less than the median.

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Consider the following distribution of scores: 9, 9, 13, 16. What are the values of the mode, median, and mean?

11.75, 11.0, and 9.0

9.0, 11.0, and 11.75

9.0, 10.0, and 11.0

9.5, 8.0, and 10.0

Answer

Correct Answer: 9.0, 11.0, and 11.75

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A bimodal distribution is one wherein ______.

There are two medians

Dividing the median by 2 will always result in a whole number

Dividing the mode by 2 will always result in a whole number

There are two modes

Answer

Correct Answer: There are two modes

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In a symmetrical distribution, which of the following is true?

The median is approximately equal to the mean.

The median is greater than the mean.

The mode is equal to 1.

The median is less than the mean.

Answer

Correct Answer: The median is approximately equal to the mean.

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In a positively skewed distribution, which of the following is true?

The median is greater than the mean.

The median is approximately equal to the mean.

The median is less than the mean.

The mode is equal to 1.

Answer

Correct Answer: The median is less than the mean.

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What is the value of the median for the following distribution of scores: 5, 5, 7, 10, 13?

Answer

Correct Answer: 7

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What is the value of the mean for the following distribution: 3, 3, 8, 9, 12?

Answer

Correct Answer: 7

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Which level of data can use the mode, the median, and the mean?

Interval–ratio-level data

Nominal-level data

Unimodal-level data

Ordinal-level data

Answer

Correct Answer: Interval–ratio-level data

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Which measure(s) of central tendency can be used with ordinal level data?

The median and the mean

The mode only

The mode and the median

The mean only

Answer

Correct Answer: The mode and the median

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Which measure of central tendency can be used with nominal level data?

Mode

Median

Mean

Standard deviation

Answer

Correct Answer: Mode

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The most appropriate measure of central tendency to describe the variable of political party affiliation would be ______.

The mean

The mode

The median

The average

Answer

Correct Answer: The mode

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______ is the score that divides the distribution into two equal parts so that half of the scores are above and half of the scores are below.

The median

The mode

The average

The mean

Answer

Correct Answer: The median

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______ can only be calculated at the interval–ratio level.

The mean

The median

The mode

The average

Answer

Correct Answer: The mean

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______ are all measures of central tendency.

The mode, the median, and the mean

The median and the mode

The mean

The average

Answer

Correct Answer: The mode, the median, and the mean

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