hrijaymadathil
27.07.2019 •
Mathematics
Aresearch study shows that the yearly cost of dental claims for virginia state employees with dental care as a part of their health insurance has a distribution with a mean of $1200 and a standard deviation of $200. if a random sample of 25 virginia state employees with dental insurance is selected, what is the probability that the mean of the yearly dental claims for this sample is between $1175 and $1225?
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Ответ:
Ответ:
0.00264
Step-by-step explanation:
You do 2.64 x 0.001 =0.00264. Then you do 8.0 x 10⁰ which is 1. So yeah its 0.00264