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BESC Exam 1 Chapters 1-5 Questions & Answers
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BESC Exam 1 Chapters 1-5 Questions & Answers
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BESC Exam 1 Chapters 1-5 Questions &Answers
What is the minimum level of measurement needed to calculate the mode? Correct Ans-
nominal
Which of these measures is LEAST affected by outliers? Correct Ans-median
What is the minimum level of measurement needed to calculate the median? Correct Ans-
ordinal
What is the mean for these data?
3, 1, 2, 5, 3, 4 Correct Ans-3
In a negatively skewed distribution, which measure will generally have the highest value?
Correct Ans-mode
Which measure of central tendency is MOST influenced by outliers? Correct Ans-mean
In a positively skewed distribution, which measure will generally have the highest value?
Correct Ans-mean
What is the minimum level of measurement needed to calculate the mean? Correct Ans-
interval
Which measure of central tendency is most appropriate for skewed distributions? Correct
Ans-median
, Which measure requires a degrees of freedom calculation? Correct Ans-sample variance
A narrow distribution that is sharply pointed in the middle and that has many outliers is also
called _____. Correct Ans-leptokurtic
What is the range for this data set?
5, 1, 2, 6, 5 Correct Ans-5
If the formula for the population standard deviation were used with sample data, then result
would be... Correct Ans-too small
One good use of the range is to... Correct Ans-check for outliers
If scores in a data set are very different from each other, then the standard deviation...
Correct Ans-will be high
Which measure of variation is LEAST sensitive to outliers? Correct Ans-IQR
What is the IQR for this data set?
6, 4, 6, 6, 1, 6, 3, 4 Correct Ans-2.5
For a normal distribution, kurtosis is... Correct Ans-0
What is the range for this data set?
5, 3, 7+, 1, 4 Correct Ans-cannot be calculated
If a distribution has a mean of 20, then what is the deviation value for a score of 23? Correct
Ans-+3
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