Answer:
The interval that represents the middle 68% of her commute times is between 33.5 and 42.5 minutes.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean of 38 minutes, standard deviation of 4.5 minutes.
Determine the interval that represents the middle 68% of her commute times.
Within 1 standard deviation of the mean. So
38 - 4.5 = 33.5 minutes
38 + 4.5 = 42.5 minutes.
The interval that represents the middle 68% of her commute times is between 33.5 and 42.5 minutes.
Answer:
-1.07+(-2.917)-4.3=-8.287
Step-by-step explanation:
Answer:
it's ans is 4761300
Step-by-step explanation:
by using BODMAS
75369×3429×0
=0
0+1367324+3469345
=4836669
4836669-75369
=4761300
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The answer to this is 1 pound and 4 ounces.
Tom sold 22 tickets and Steve sold 57 tickets here is the method
