Question

Using the following numbers,

23, 50, 38, 42, 63, 75, 12, 33, 26, 39, 35, 47, 43, 52, 56, 59, 64, 77, 15, 21, 51,

Determine:

a) the probability that someone scored 52 or higher on the text?



b) what is the probability that someone scored below 45 on the test?



c) the scores between which 95% of the cases will fall.



HINT: You will first need to compute the mean and SD.

Answer 1

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