Karteikarten
Stats 151 - Normal Curve Z Scores and Probability
Karten in diesem Stapel (10)
- 1What are the two types of questions that a re asked with regard to Normal Curvesto find the probability of events where XB, and A
- 2How do the X, U and sigma values change when you use a normal curve?x is converted to Z, u = 0 and sigma = 1
- 3how do you find the probability of Ztake your value of Z and go to table two. the value on the table that lines up with the Z is your area probability
- 4how do you find where Z>B for a normal curve1 - Z
- 5how do you find AA1-A2 = A3
- 6How do you find the percentile of a normal curve?first find the area using the z score. line it up as close as you can because the percentile value will not be on the table exactly.
- 7How do you find the Q1 and the Q3 for a normal curve?if u is 0 and sigma is one the probability that z is greater then Q1 and less then Q3 are 0.25 and 0.75. find 0.25 as a z score to find the area which is between two values. find the average of those two areas this is your Q1. Your Q3 is just the negative value of of this
- 8What is Z Alpha notation?a Z score that has alpha area to its right under the standard normal curve
- 9how do you find the Z Alpha notation?Z subscript = find the subscript on table 2 and use it to find the area
- 10How do you find probability for any normal distribution?sketch the distribution with the mean and shaded desired area. convert x to z. but both sets of values on the x axis, z below x. use table 2 to find the desired probabilities
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- Chemistry 101 Stats 151 Karteikarten am Stats 151 - Normal Curve Z Scores and Probability, erstellt von jennabarnes12387 am 05/02/2014.
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- jennabarnes12387
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