Question
2.) (1 point) The times for the mile run of a large group of male college students are approximately Normal with mean 7.08 minutes and
2.) (1 point) The times for the mile run of a large group of male college students are approximately Normal with mean 7.08 minutes and standard deviation 0.73 minutes. Use the 68-95-99.7 rule to answer the following questions. (Start by making a sketch of the density curve you can use to mark areas on.)
(a) What range of times covers the middle 95% of this distribution?
(b) What percent of these men run a mile in less than 9.27 minutes?
(a) from_______minutes to________minutes
(b)______%
4.) (1 point) In 2007, when she was a high school senior, Eleanor scored 650 on the mathematics part of the SAT. The distribution of SAT math scores in 2007 was Normal with mean 515 and standard deviation 114. Gerald took the ACT Assessment mathematics test and scored 30. ACT math scores for 2007 were Normally distributed with mean 21.0 and standard deviation 5.1. Find the standardized scores for both students.
Eleanor's standardized scorez =
Gerald's standardized scorez=
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