Let the variable X be normally distributed such that H = 50 and & = 10. Calculate the probability P(X 2 40 AND X < 70). Round to four decimal places
Added by Mar-A N.
Step 1
First, we need to standardize the values of 40 and 70 using the formula: z = (x - μ) / σ where x is the value we want to standardize, μ is the mean (H), and σ is the standard deviation (&). For x = 40: z = (40 - 50) / 10 = -1 For x = 70: z = (70 - 50) / 10 = Show more…
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