A restaurant buys avocados from three suppliers P, Q and R. Records show that 30% of the avocados come from P, 55% come from Q and the rest come from R. Further records show that 8% of avocados supplied by P are substandard, 12% of avocados supplied by Q are substandard and 15% of avocados supplied by R are substandard. A chef working at the restaurant
A restaurant buys avocados from three suppliers P, Q and R. Records show that 30% of the avocados
come from P, 55% come from Q and the rest come from R. Further records show that 8% of avocados
supplied by P are substandard, 12% of avocados supplied by Q are substandard and 15% of
avocados supplied by R are substandard.
A chef working at the restaurant randomly selects an avocado and finds it to be substandard.
Calculate the probability that this avocado came from supplier Q.
The manager of the restaurant notices that customers arrive at the restaurant at an average rate of 10
customers per hour. Assume a Poisson distribution.
2.1 Determine the probability that exactly 7 customers arrive in a given hour.
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