Question

question 49
which of the following values for the population standard deviation would cause a score located above the mean average to have the most extreme position in the distribution?
σ = 1
σ = 2
σ = 3
σ = 4
question 50
which of the following is not a unique advantage of the interquartile range as measure of variability?
the interquartile range is less influenced than the range by extreme scores.
the interquartile range can be utilized in open - ended distributions.
the interquartile range can be used for data measured with an ordinal scale of measurement.
the interquartile range can be used for data measured with a ratio scale of measurement.

Explanation:

Question 49

The smaller the standard - deviation, the closer the scores are to the mean. A score above the mean will be in a more extreme position when the standard - deviation is smaller. Among the given values, $\sigma = 1$ is the smallest standard - deviation value.

The ability to use the inter - quartile range for data measured with a ratio scale of measurement is not a unique advantage. The range can also be used for ratio - scale data. The other three options are unique advantages of the inter - quartile range.

Answer:

A. $\sigma = 1$

Question 50