Mathematics, 16.10.2020 01:01 ctyrector
A day care program has an average daily expense of $75 the standard division of $15 the owner takes a sample of 64 bills what is the probability that the mean of his sample will be between $70 and $80
step1 calculate the z-score for $70. 23.6,11.8,-0.3
step2 give the probability for Step 1.
0.3,11.8,23.6
step 3 calculate the z-score for $80.
11.8,0.3,23.6
step4 give the probability for step 3.
23.6,11.8,0.3
step 5 at the probability for Step 1 and 3
23.6,11.8,0.3
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