Asked by jean
MEAN=10 & STD 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
i have 2 different answers but am checking the answer. thank you
Answers
Answered by
PsyDAG
I assume your mean scores of 9.4 and 10.6.
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores.
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores.
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