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Author Question: The variance (s2) can most accurately be thought of as being the _____. a. measure of central ... (Read 62 times)

karateprodigy

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on: Jun 19, 2018
The variance (s2) can most accurately be thought of as being the _____.
 
  a. measure of central tendency depicted on a graph
  b. square root of the standard deviation
  c. average of the squared deviations from the mean
  d. average deviation of a set of scores from the mean

Question 2

A student conducts a brief survey at a public lecture and finds that most of the people attending the lecture are either over 50 or under 20 . There are very few people there aged 20 to 50 . If the student were to graph the ages in groups of 10 (e.g. 10 to 20; 20 to 30; 30 to 40, etc), the distribution would look _____.
 
  a. normal c. skewed
  b. bimodal d. uniform


ntsoane kedibone

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Reply #1 on: Jun 19, 2018
Answer to Question 1

C
The variance is the average of the squared deviations around the mean.

Answer to Question 2

B
There are two modes: very young people and very old people.


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