The average age CEO's is 56 years. Assume the variable is normally distributed. If the standard deviation is 4 years, find the probability that the age of a randomly selected CEO will be less than 52 years old. Report answer to the 4 decimal place.
Added by Diana M.
Step 1
To do this, we need to calculate the z-score, which measures how many standard deviations an observation is from the mean. The formula for calculating the z-score is: z = (x - μ) / σ Where: x = the value we want to convert to a z-score (in this case, 52 years) μ Show more…
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