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Question 1: Given 5 integers: 75, 77, x, 78, 79. the standard deviation is 1.6. a) show that 2x^2 - 309x + 11925 = 0
b) find the value of x. PLEASE SHOW ALL WORKINGS!!! c)*** Tell me briefly how to find the mean and standard deviation from the calculator . (i know how to get the sd mode and i can get the symbol of mean and sd). JUST THE SIMPLE STEPS is required.


咪走寶!!! wo!!