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ra1l [238]
2 years ago
5

Data from Ivy Tech's advising center shows the wait times as a normal distribution with the average as 20 min and a standard dev

iation as 5 min.
Using the empirical rule, what percent of students wait between 15 and 25 minutes?
Mathematics
1 answer:
fiasKO [112]2 years ago
8 0

9514 1404 393

Answer:

  68%

Step-by-step explanation:

According to the empirical rule, 68% of the distribution lies within 1 standard deviation of the mean.

Here, the mean is 20 and the standard deviation is 5. The bounds on 1 standard deviation from the mean are 20±5 = [15, 25]. This is precisely the interval of interest.

  68% of students wait between 15 and 25 minutes

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