In reference to what you learnt in business mathematics and statistics, describe five kinds of theory of probability. The table below indicates the cost of certain air tel kiosk Z 0.15 0.20 0.25 0.75...

• In reference to what you learnt in business mathematics and statistics, describe five kinds of theory of probability.


• The table below indicates the cost of certain
  air tel
  kiosk

If it was stated that, the number of telephone calls received at a switchboard is approximately normal with a mean of 580 calls and a standard deviation of 10.

REQUIRED

Find the possibility that on a given day the number of calls received at the switchboard will be;

• Exactly 578


• Less than 57


• Between 561 and 600 inclusive