Final answer:
Each day the school canteen can be one of only three thingsThe probability that it is Pizza is 0.3The probability that it is Curry is 0.42. What is the probability that it is Pasta?
The probability of the school canteen serving Pasta is calculated by subtracting the sum of the probabilities of the other two options (Pizza and Curry) from 1. The result is a probability of 0.28, or 28%, for Pasta.
Step-by-step explanation:
The student's question pertains to the probability of the school canteen serving Pasta, given the probabilities of Pizza and Curry. To find the probability of Pasta, we use the principle that the sum of probabilities of all mutually exclusive events must equal 1.
Given:
Probability of Pizza (P(Pizza)) = 0.3
Probability of Curry (P(Curry)) = 0.42
To find:
Probability of Pasta (P(Pasta)) =?
Since these are the only options, we can calculate the probability of Pasta by subtracting the sum of the probabilities of Pizza and Curry from 1:
To find the probability of Pasta, you can use the fact that the sum of the probabilities of all possible outcomes must equal 1.
P(Pasta) = 1 - P(Pizza) - P(Curry)
P(Pasta) = 1 - 0.3 - 0.42
P(Pasta) = 1 - 0.72
P(Pasta) = 0.28
Therefore, the probability that the canteen serves Pasta is 0.28, or 28%.