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Problem-Solving and Data Analysis / One-variable data: Distributions and measures of center and spread Difficulty: Easy

The table below shows the high and low temperatures in Houston, Texas, during a five-day period.

The figure presents a 6-column table, with two rows of data, titled “Temperatures in Houston, Texas,” in degrees Fahrenheit. The first column has no heading. Columns 2 through 6 have the following headings: Monday, Tuesday, Wednesday, Thursday, and Friday, respectively. The 2 rows of data are as follows.
Row 1. High temperature, in degrees Fahrenheit, for Monday through Friday, respectively: 73, 56, 62, 75, 81.
Row 2. Low temperature, in degrees Fahrenheit, for Monday through Friday, respectively: 49, 37, 41, 54, 63.

What was the mean low temperature, in degrees Fahrenheit, during the five-day period?

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Explanation

Choice A is correct. The mean low temperature can be calculated by finding the sum of the low temperatures for all the days shown in the table, 49 + 37 + 41 + 54 + 63 = 244, and then dividing the sum by the number of days the temperature was recorded, $244 divided by 5, equals 48 point 8$ .

Choice B is incorrect. This may be the result of choosing the median rather than calculating the mean. Choices C and D are incorrect and may be the result of calculation errors.