ianmorales4894
24.07.2019 •
Mathematics
During registration at a university, 170 students took advantage of the online system to sign up for classes. sixty-two students took 20 minutes to register; 87 took 35 minutes to register; and, 21 students took 50 minutes to register. to the nearest minute, find and interpret the mean of the data. a) the amount of time a student spent online to register was about 48 minutes. b) the amount of time a student spent online to register was about 31 minutes. c) the amount of time a student spent online to register was exactly 35 minutes. d) the amount of time a student spent online to register was more than 42 minutes.
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Ответ:
To find the mean we have to add up all the different wait times and then divide by the total.
Add them up:
62(20) + 87(35) + 21(50) = 5335
Divide it by the total:
5335 / (62 + 87 + 21) = 31.38
Ответ:
answer