Answer:
a. The empirical rule.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed(bell-shaped) random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
So the correct answer is:
a. The empirical rule.
Or, is it asking you to subtract the? In that case
5/4 - 3/8 = 7/8
The correct answer is 12:16 P.M.
<h3>How to find when did Deb finish eating lunch ?</h3>
According to the problem,
- Deb started doing yard work at 9:52 A.M.
- After working for 1 hour and 48 minutes, she stopped to have lunch.
- It took her 36 minutes to eat lunch.
∴ Time at which Dev finishes her lunch =
9:52 A.M. + ( 1 hour and 48 minutes + 36 minutes )
= 11:40 A.M. + 36 minutes = 12 : 16 P.M.
∴ Deb finish eating lunch at 12:16 P.M.
Find out more information about time calculations here: brainly.com/question/1933707
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You have a 1.6 chance if i am wrong i am sorry
