35 44 47 48 53 54 57 58 63 63 63 64 64 66 67

35 , 44 , 47 , 48 , 53 , 54 , 57 , 58 , 63 , 63 , 63 , 64 , 64 , 66 , 67 , 69 , 69 , 71 , 72 , 74 , 75 , 79

(a) Which measures of central tendency do not exist for this data set? Choose all that apply.

Mean

Median

Mode

None of these measures

(b) Suppose that the measurement 35 (the smallest measurement in the data set) were replaced by 23. Which measures of central tendency would be affected by the change? Choose all that apply.

Mean

Median

Mode

None of these measures

(c) Suppose that, starting with the original data set, the smallest measurement were removed. Which measures of central tendency would be changed from those of the original data set? Choose all that apply.

Mean

Median

Mode

None of these measures

(d) The relative values of the mean and median for the original data set are typical of data that have a significant skew to the left. What are the relative values of the mean and median for the original data set? Choose only one.

Mean is greater

Median is greater

Cannot be determined

a) you can calculate 3 of them without problem

None of these measures

(b) Suppose that the measurement 35 (the smallest measurement in the data set) were replaced by 23. Which measures of central tendency would be affected by the change? Choose all that apply.

the mean is the only that would be affected because depends of the # of values and the value of each one

Mean

mean for the same cause of the literal b) and median because the median is the value in the middle of the data if you remove 1 of the value of the data the median will afect

Mean

Median

Mean is greater

35 , 44 , 47 , 48 , 53 , 54 , 57 , 58 , 63 , 63 , 63 , 64 , 64 , 66 , 67 , 69 , 69 , 71 , 72 , 74 , 75 , 79 (a) Which measures of central tendency do not exist

35 44 47 48 53 54 57 58 63 63 63 64 64 66 67

Solution

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