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Unformatted text preview: 2040 Exam 3 Review Chp. 7 & 8 The Normal Distribution a) Calculate probabilities for a continuous uniform distribution. b) Properties of the normal distribution: continuous and - < x < , total area = 1, symmetric about the mean, probabilities of being in a specific length interval exponentially decrease as the distance from increases area between -1< z < 1 =.68, area between -2 < z < 2 =.95, area between -3 < z < 3 =.997 c) Find the area: less than a z value , greater than a z value, between two z values. TI normalcdf(z 1 ,z 2 ) PHStat probability distributions Normal - mean 0, std. dev. 1 d) Applications of the normal distribution Find a probability given values of the random variable TI normalcdf(v 1 ,v 2 , , ) PHStat probability distributions Normal - mean , std. dev. Find value(s) of the variable given a probability TI invnorm(prob, , ) PHStat probability distributions Normal - mean , std. dev....
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