
Drivethru Restaurant




A

B

C

D

Order Accurate

328328

276276

238238

140140

Order Not Accurate

4040

6060

3333

1717

Concept of probability:
Probability deals with the likelihood of occurrence of a given event. The probability value lies between 0 and 1. An event with probability 1 is considered as certain event and an event with probability 0 is considered as an impossible event. The probability of 0.5 infers of having equal odds of occurring and not occurring of an event.
The general formula to obtain probability of an event A is,
P(A) = (number of favourable elements for event A)/(Total number of elements in the sample space).
The basic properties of probability are given below:
Find the probability of getting food that is not from restaurant A:
Given that from the list of randomly selected orders from a restaurant, one order is selected.
The total number of orders from restaurant A is, the sum of accurate orders from restaurant A and not accurate orders from restaurant A.
That is, the total number of orders from restau...
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