Question

A message center recives calls from 6pm until 6am .typicaslly 50% of the calls berween 6pm and 9 pm :25% of the calls come in between 9pm and midnight : 20%of the calls come in between midnight and 3 am and 5 % of the calls come in beteween 3amand 6 am


What is the probability that a call will come in between 6pm and midnight

Answer 1

@DarrenMadx

Answer 2

@EXOEXOEXO

Answer 3

so the total is 100%

Answer 4

then you find out the total percent of calls received between 6pm and midnight

Answer 5

50% of the call come in between 6pm-9pm and 20 between 9 and midnight so add them 50%+20%=70%

Answer 6

the total percent of calls between 6pm to midnight over the total percent of calls received between 6pm to 6am is the probability that a call will come in between 6pm and midnight

Answer 7

so its 100%

Answer 8

@EXOEXOEXO

Answer 9

No it is not 100% because some of the calls do not take place during 6pm-midnight

Answer 10

so its 70%

Answer 11

Yes :)

Answer 12

Do you understand why?