Homework answers / question archive / Ashford University PSY325 QuizWeek 1 Weekly Review Question1)Compared to a normal distribution, a and skinny” whereas a_______distribution is “low and fat

Ashford University PSY325 QuizWeek 1 Weekly Review Question1)Compared to a normal distribution, a and skinny” whereas a_______distribution is “low and fat

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Ashford University

PSY325 QuizWeek 1 Weekly Review

Question1)Compared to a normal distribution, a and skinny” whereas a_______distribution is “low and fat.”

•             platykurtic; leptokurtic

•             leptokurtic; platykurtic

 

Question 2 Normal distributions have the following characteristics except           

•             they are unimodal

•             they are platykurtic

•             they are symmetrical

•             s = R/6

Question 3  In a class interval, we have the values 2, 3, 3, 4, 4, 4, 5, 6; f = 3 refers to which value?

•             3

4

•             5

•             6

Question 4 Which measure of central tendency gives the middle score or mid-point?

•             Median

•             Mode

•             All of the above

•             Mean

Question 5  The bell-shaped curve is also a frequency polygon.

•             True

•             False

Question 6  Which of the following is not a measure of central tendency?

•             Mean

•             Range

•             Median

•             Mode

Question 7  Which statistic indicates the most frequently occurring number in a set?

•             Mean

•             Range

•             Median

•             Mode

 

Question 8  How is a frequency polygon different from a bar chart?

•             The points in a frequency polygon indicate the range of values involved.

•             The points in a frequency polygon indicate data scale.

•             The points in a frequency polygon indicate variability.

•             The points in a frequency polygon are individual values.

Question 9 A distribution with s = 4 and R = 12 is leptokurtic.

•             True

•             False

Question 10 In statistical notation, Greek letters refer to which of the following?

•             Concepts that are important to the procedure

•             Statistics that must be calculated

•             Procedures or values used repeatedly

•             Procedures for which the value is unknown