Question

Question 2. The life span of an insect is BLACK X (ladder unit) with a single night of XEU SU ( kx² ( 4 - x ) neu x = [ 0.4 ] f ( x ) = { kx² ( 4 0 if vice versa a / Find the mean and standard deviation of life expectancy X. b / Observe the life spans of those 20 insects and call Y the number of insects that die before it is 1 month old. What distribution , calculate EY , DY .

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please could you make your question more understandable