2 Answered Questions for the topic Z Scores

09/08/19

Normal Distribution and Z scores
The SAT Mathematics are know to follow an approximate normal distribution with a mean of 500 and a standard devation of 100. The ACT Mathematics are known to follow an approximate normal... more
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Z Scores

02/05/15

In a normal distriution above which z score do approximately 63 percent of the data lie?
At first I was thinking 1.79
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