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STATS EXAM 1 PIERSON 70
QUESTIONS WITH DETAILED
VERIFIED SOLUTIONS/ STATS EXAM
3 PIERSON A+ GRADE ASSURED
A parameter is: - CORRECT ANSWER ✔✔- a characteristic of a population
Descriptive statistics are used to: - CORRECT ANSWER ✔✔- summarize or
describe data
Inferential statistics are used to: - CORRECT ANSWER ✔✔- make statements
about a population based on information from a sample
A statistic is to a sample as: - CORRECT ANSWER ✔✔- a parameter is to a
population
The measure of central tendency that is sensitive to extreme scores is the: -
CORRECT ANSWER ✔✔- mean
Mean of the population - CORRECT ANSWER ✔✔-
A measure that summarizes a distribution in terms of its centrality or typically is: -
CORRECT ANSWER ✔✔- a measure of central tendency
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The score that is located in the middle of a distribution or the score that cuts a
distribution in half is the: - CORRECT ANSWER ✔✔- median
Mean of a sample - CORRECT ANSWER ✔✔-
Which of the following is NOT a measure of central tendency? - CORRECT
ANSWER ✔✔- The average deviation
Which of the following is NOT a measure of dispersion? - CORRECT ANSWER
✔✔- The median
Which of the following correctly states the relationship between the standard
deviation and the variance? - CORRECT ANSWER ✔✔- The variance is equal to
the standard deviation, squared
What is the position of the median in the following distribution?
{ 1, 4, 7, 12, 14, 1, 13, 9, 10 } - CORRECT ANSWER ✔✔- 5.5th score
What is the value of the median in the following distribution?
{ 1, 4, 5, 7, 12, 14, 1, 13, 9, 10 } - CORRECT ANSWER ✔✔- 8
The sum of the deviations from or about the mean will always equal - CORRECT
ANSWER ✔✔- 0
What is the mode for the following distribution?
{ 72, 83, 91, 72, 64, 93 } - CORRECT ANSWER ✔✔- 72
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Assume you are working with population of N = 16 scores. The sum of all the
scores is equal to 96. What is the population mean? - CORRECT ANSWER ✔✔- 6
The ________ is found by calculating the sum of all the scores in a distribution and
then dividing the sum by the number of scores in the distribution. - CORRECT
ANSWER ✔✔- Mean
In order to obtain a more accurate reflection of the standard deviation or variance
of the population, the standard deviation and variance for a sample are calculated
by using ______ in the denominator of the formula, as opposed to using ________
in the formula. - CORRECT ANSWER ✔✔- n-1; n
The measure of dispersion that is based upon absolute values of deviations from
the mean is the: - CORRECT ANSWER ✔✔- average or mean deviation
What is the range? - CORRECT ANSWER ✔✔- A statement of the lowest and
highest score in the distribution.
A table or listing that shows values and how many times each value occurs is: -
CORRECT ANSWER ✔✔- Frequency distribution
What is the simplest, most fundamental level of measurement? - CORRECT
ANSWER ✔✔- Nominal
Students are given grades of A, B, C, D, or F on their homework assignments. The
use of letter grades would be an example of what level of measurement? -
CORRECT ANSWER ✔✔- Ordinal
STATS EXAM 1 PIERSON 70
QUESTIONS WITH DETAILED
VERIFIED SOLUTIONS/ STATS EXAM
3 PIERSON A+ GRADE ASSURED
A parameter is: - CORRECT ANSWER ✔✔- a characteristic of a population
Descriptive statistics are used to: - CORRECT ANSWER ✔✔- summarize or
describe data
Inferential statistics are used to: - CORRECT ANSWER ✔✔- make statements
about a population based on information from a sample
A statistic is to a sample as: - CORRECT ANSWER ✔✔- a parameter is to a
population
The measure of central tendency that is sensitive to extreme scores is the: -
CORRECT ANSWER ✔✔- mean
Mean of the population - CORRECT ANSWER ✔✔-
A measure that summarizes a distribution in terms of its centrality or typically is: -
CORRECT ANSWER ✔✔- a measure of central tendency
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The score that is located in the middle of a distribution or the score that cuts a
distribution in half is the: - CORRECT ANSWER ✔✔- median
Mean of a sample - CORRECT ANSWER ✔✔-
Which of the following is NOT a measure of central tendency? - CORRECT
ANSWER ✔✔- The average deviation
Which of the following is NOT a measure of dispersion? - CORRECT ANSWER
✔✔- The median
Which of the following correctly states the relationship between the standard
deviation and the variance? - CORRECT ANSWER ✔✔- The variance is equal to
the standard deviation, squared
What is the position of the median in the following distribution?
{ 1, 4, 7, 12, 14, 1, 13, 9, 10 } - CORRECT ANSWER ✔✔- 5.5th score
What is the value of the median in the following distribution?
{ 1, 4, 5, 7, 12, 14, 1, 13, 9, 10 } - CORRECT ANSWER ✔✔- 8
The sum of the deviations from or about the mean will always equal - CORRECT
ANSWER ✔✔- 0
What is the mode for the following distribution?
{ 72, 83, 91, 72, 64, 93 } - CORRECT ANSWER ✔✔- 72
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Assume you are working with population of N = 16 scores. The sum of all the
scores is equal to 96. What is the population mean? - CORRECT ANSWER ✔✔- 6
The ________ is found by calculating the sum of all the scores in a distribution and
then dividing the sum by the number of scores in the distribution. - CORRECT
ANSWER ✔✔- Mean
In order to obtain a more accurate reflection of the standard deviation or variance
of the population, the standard deviation and variance for a sample are calculated
by using ______ in the denominator of the formula, as opposed to using ________
in the formula. - CORRECT ANSWER ✔✔- n-1; n
The measure of dispersion that is based upon absolute values of deviations from
the mean is the: - CORRECT ANSWER ✔✔- average or mean deviation
What is the range? - CORRECT ANSWER ✔✔- A statement of the lowest and
highest score in the distribution.
A table or listing that shows values and how many times each value occurs is: -
CORRECT ANSWER ✔✔- Frequency distribution
What is the simplest, most fundamental level of measurement? - CORRECT
ANSWER ✔✔- Nominal
Students are given grades of A, B, C, D, or F on their homework assignments. The
use of letter grades would be an example of what level of measurement? -
CORRECT ANSWER ✔✔- Ordinal
