STATISTICS EXAM CHAPTERS 2 LATEST EXAMS OF STATISTICS QUESTIONS WITH
100% VERIFIED SOLUTIONS UPDATED FOR 2025
Who is credited with the development of the
correlation?
Francis Gouton
This is the value that best represents an entire group
of scores.
average
Which of the following is not a measure of central
tendency?
standard deviation
This measure of central tendency can be considered the most precise:
mean
This measure of central tendency can be considered the least precise:
mode
What should be used to determine central tendency?
an average
This consists of the middle point of a set of values:
mean
What is the most common average computed?
mean
What is the symbol used to represent the mean?
X with a bar over it
What is another term for the mean?
arithmetic average
arithmetic mean the point at which the sum of the deviations is equal to zero. page 22
What value is most often used to represent an entire group of scores?
, mean
If a distribution is "significantly distorted" what is this called?
skew
What is another way of describing "measures of central tendency"?
averages
14. What is the formula for computing the mean?
X (line above) = greek letter X/n
This is calculated by multiplying values by the frequency of their occurrence, adding the total of
all the products, and then dividing by the total number of occurrences:
weighted mean
Which of the following symbols represents the individual score?
X
17. What does the symbol represent?
the sum of values
18. What is the name of the letter ( greek letter or o)
sigma
19. Which of the following symbols represents sample size?
n
What does the symbol M represent?
mean
21. If you know M = 5 and the sum of scores is 20, what is n?
4
If 4,390 and n = 4, what is M?
99.77 ??
23. What is the Mean value for the following scores: 10, 35, 40, 60, 55, 25, 50
39.29
100% VERIFIED SOLUTIONS UPDATED FOR 2025
Who is credited with the development of the
correlation?
Francis Gouton
This is the value that best represents an entire group
of scores.
average
Which of the following is not a measure of central
tendency?
standard deviation
This measure of central tendency can be considered the most precise:
mean
This measure of central tendency can be considered the least precise:
mode
What should be used to determine central tendency?
an average
This consists of the middle point of a set of values:
mean
What is the most common average computed?
mean
What is the symbol used to represent the mean?
X with a bar over it
What is another term for the mean?
arithmetic average
arithmetic mean the point at which the sum of the deviations is equal to zero. page 22
What value is most often used to represent an entire group of scores?
, mean
If a distribution is "significantly distorted" what is this called?
skew
What is another way of describing "measures of central tendency"?
averages
14. What is the formula for computing the mean?
X (line above) = greek letter X/n
This is calculated by multiplying values by the frequency of their occurrence, adding the total of
all the products, and then dividing by the total number of occurrences:
weighted mean
Which of the following symbols represents the individual score?
X
17. What does the symbol represent?
the sum of values
18. What is the name of the letter ( greek letter or o)
sigma
19. Which of the following symbols represents sample size?
n
What does the symbol M represent?
mean
21. If you know M = 5 and the sum of scores is 20, what is n?
4
If 4,390 and n = 4, what is M?
99.77 ??
23. What is the Mean value for the following scores: 10, 35, 40, 60, 55, 25, 50
39.29
