the speed of a car on a Boston tollway during rush hour traffic
A) continuous B) discrete
Q. 2High temperatures in a certain city for the month of August follow a uniform distribution over the interval 73F to 103F. Find the high temperature which 90 of the August days exceed.
A) 76F B) 100F C) 83F D) 103F
Q. 3At 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 14 mph.
If nothing is known about the shape of the distribution, give an interval that will contain the speeds of at least eight-ninths of the players serves. A) 56 mph to 140 mph B) 70 mph to 126 mph
C) 42 mph to 154 mph D) 140 mph to 182 mph
Q. 4the age of the oldest dog in a kennel
A) continuous B) discrete
Q. 5the number of goals scored in a hockey game
A) discrete B) continuous
Q. 6The average score of local students on a college entrance exam is 110, with a standard deviation of 5. The distribution is roughly bell shaped. Use the Empirical Rule to find the percentage of local students with scores above 120.
A) 2.5 B) 5 C) 95 D) 97.5
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