gthif13211
17.12.2020 •
Mathematics
O A. X = 9 and x = -9
OB. = 9 and 2 = -21
O C. X = -9 and 20
mm
21
D. x = -9 and x = -21
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Ответ:
No. of Persons= 16
Step-by-step explanation:
There was a one phone line
Average no of people calling = 60 in one hour
% of all callers at most can get busy signal
Probability < 0.6
Probability for less than 1 person on hold = 0.2642
No of persons = 0.2642(60)
= 15.852 or 16
16 persons in hour the company is able to put on hold