At a tennis tournament a statistician keeps track of every serve. The statistician reported that the mean serve speed of a particular player was 98 miles per hour (mph) and the standard deviation of the serve speeds was 10 mph. If nothing is known about the shape of the distribution, give an interval that will contain the speeds of approximately three-fourths of the player's serves. 88 mph to 108 mph 78 mph to 118 mph 118 mph to 138 mph 68 mph to 128 mph

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At a tennis tournament a statistician keeps track of every serve. The statistician reported that the mean serve speed of a particular player was 98 miles per hour (mph) and the standard deviation of the serve speeds was 10 mph. If nothing is
known about the shape of the distribution, give an interval that will contain the speeds of approximately three-fourths of the player's serves.
88 mph to 108 mph
78 mph to 118 mph
118 mph to 138 mph
68 mph to 128 mph
Transcribed Image Text:At a tennis tournament a statistician keeps track of every serve. The statistician reported that the mean serve speed of a particular player was 98 miles per hour (mph) and the standard deviation of the serve speeds was 10 mph. If nothing is known about the shape of the distribution, give an interval that will contain the speeds of approximately three-fourths of the player's serves. 88 mph to 108 mph 78 mph to 118 mph 118 mph to 138 mph 68 mph to 128 mph
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