We have to calculate the probability of means of the elements. Hence, we first calculate the mean and S.D. of means.
New Mean = 2200
Now, using the new distribution,
Hence,
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SAT scores are normally distributed with a mean of 2200 and a variance of 1600 a....
Sat scores are normally distrbuted with a mean of 2100 and a variance of 1600 a. what is the probability that someone will score between 2060 and 2160 b. probablity soneone will score less than 2050 c. minium score to rank top 10%
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Assume that all SAT scores are normally distributed with a mean µ = 1518 and a standard deviation σ = 325. If 100 SAT scores (n = 100) are randomly selected, find the probability that the scores will have an average less than 1500. TIP: Make the appropriate z-score conversion 1st, and then use Table A-2 (Table V) to find the answer. Assume that all SAT scores are normally distributed with a mean µ = 1518 and a standard deviation...
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