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# Extra Notes 2.png - of Taylor Made Drivers 68 of Titleist...

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* * *Scores on the math section of a college entrance exam are normally distributed with mean μ= 22.4 and standard deviation σ=3.1. Find the probability that a randomly selected test-taker will score 25 or higher on the math section of this exam. 0.2005 *Every normal distribution is symmetric about its mean μ, but the mean is not necessarily 0. *Twenty-three percent of college freshmen do not return to college for their sophomore year of study. A random sample of 12 college freshmen is obtained. The probability that exactly four of the 12 freshmen will not return for their sophomore year is 0.1712 *A random sample consisting of 64 observations is collected from a population with mean 75 and standard deviation 32. The probability that the sample mean will have value that is less than 83 is 0.9772 * *At a recent PGA tour stop, the following descriptive statistics were developed;

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Unformatted text preview: % of Taylor Made Drivers 68% % of Titleist Drivers 18% % of All Other Drivers 14% In addition, those using Drivers hit the fairway 55% of the time, Taylor Made Drivers hit the fairway 65% of the time and Titleist Drivers hit the fairway 57% of the time. From the data, assuming that a player did not play either Taylor Made or Titleist, what is the probability that they hit the fairway on average? a. 3.857% b. 55.000% c. 14.000% d. 44.200% e. 7.740% *Given the following table from the Star Trek Convention; * (not scatter) * * * *The z-score of the measurement X z =(X – x(bar)) / (s) *. *Statistical tendencies pertain to average or typical cases but not necessarily to individual cases. * * * * *...
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