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One-variable data: Distributions and measures of center and spread SAT question

Math · Problem-Solving and Data Analysis · Easy · Answer it here, explanation included.

Each value in the data set shown represents the height, in centimeters, of a plant.

$6$ , $10$ , $13$ , $2$ , $15$ , $22$ , $10$ , $4$ , $4$ , $4$

What is the mean height, in centimeters, of these plants?

Enter a number or fraction (like 3/17 or 0.176). Press Enter to check.

ExplanationShow

The correct answer is $9$ . The mean of a data set is the sum of the values in the data set divided by the number of values in the data set. It follows that the mean height, in centimeters, of these plants is the sum of the heights, in centimeters, of each plant, $6 + 10 + 13 + 2 + 15 + 22 + 10 + 4 + 4 + 4$ , or $90$ , divided by the number of plants in the data set, $10$ . Therefore, the mean height, in centimeters, of these plants is $\frac{90}{10}$ , or $9$ .

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One-variable data: Distributions and measures of center and spread SAT question

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