Suppose a normally distributed set of data with 7900 observations has a mean of 192 and a standard deviation of 18. Use the 68-95-99.7 Rule to determine the number of observations in the data set expected to be below a value of 228. Round your result to the nearest single observation. Hint: This problem is asking for how many observations, not the percent. Answer = Tip: Don't round any probabilities or percentages in your calculations. Keep all decimal places and round at the END of the problem.
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Step 1: Calculate the number of standard deviations 228 is away from the mean. Show more…
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Suppose a normally distributed set of data with 7800 observations has a mean of 188 and a standard deviation of 18. Use the 68-95-99.7 Rule to determine the number of observations in the data set expected to be below a value of 242. Round your result to the nearest single observation. Answer =
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