Question

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MEAN=10 & STANDARD DEVIATION =2. FIND THE PROBABILITIES:

9.4 less than X less than 10.6

i have 2 different answers but am checking the answer. thank you

one is 0.6179
the other is 0.2358

Answer 1

one of the best on the web for this
http://davidmlane.com/hyperstat/z_table.html

enter mean--10, SD --- 2
click on between, enter 9.4 and 10.6

it gave me .235823

Answer 2

thank you reiny that's one of my answers ...