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Statistic Probability

Given the mean and standard deviation of a variable x as 80 and 25,

Q1 What is the probability that mean of random 50 sample observation of variable x is less than 75?

Q2 What is the probability that mean of random 50 sample observation of variable x is less than 75?

Why difference in answer of Q1 & 2

Prepare a PPT of the analysis. A sample PPT of some other answer attached

Compétences : Mathématiques, Analyses statistiques, Statistiques

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