The mean of the distribution of sample means x has a normal probability distribution is μ = 224.4 ft .
Given :
let x represent the full height of a certain species of tree. assume that x has a normal probability distribution with mean 224.4 ft and standard deviation 44.7 ft .
What is mean ?
Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers .
we know that ,
Mean = sum / number of
so here given μx = 224.ft which is nothing but the mean .
so μx = μ = 224.4 ft
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