Another measure of central tendency for a set of data is called the midrange. The midrange is defined as the value that is halfway between the minimum data value and the maximum data value. That is, Midrange =

minimum value + maximum value

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The midrange is often stated as the average of a set of data in situations in which there are a large amount of data and the data are constantly changing. Many weather reports state the average daily temperature of a city as the midrange of the temperatures achieved during that day. For instance, if the minimum daily temperature of a city was 60° and the maximum daily temperature was 90°, then the midrange of the temperatures is

60° + 90°

__________ = = 75°

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Find the midrange of the following daily temperatures,which were recorded at three-hour intervals. (Round your answer to one decimal place.)53°, 68°, 55°, 80°, 71°, 69°, 62°, 72°, 51°