Please help me with this
1 answer:
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Answer: a. 0.6759 b. 0.3752 c. 0.1480
Step-by-step explanation:
Given : The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes
i.e. minutes
minutes
Let x be the long-distance call length.
a. The probability that a call lasts between 5 and 10 minutes will be :-
b. The probability that a call lasts more than 7 minutes. :
c. The probability that a call lasts more than 4 minutes. :
Answer:
75.9375%
Step-by-step explanation:
We apply the simple interest formula;
we first determine the amount of accrued interest to be earned;
interest = 275000 - 32000
= 243000
Applying the simple interest formula;