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

04/30/19

#### Normal Distribution

Problem:Mr. Z gave a test in Physics. Scores for the class are: 25, 53, 70, 33, 26, 71, 54, 31, 51, and 72. Assume the 10 scores from this test are normally distributed.A. Find the Median, Mean,... more

02/05/19

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