In a village, power cuts occur randomly at a rate of 3 per year. Find the probability that in a given year there will be: a) Exactly 7 power cuts. b) At least 4 power cuts.

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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6. In a village, power cuts occur randomly at a rate of 3 per year. Find the probability
that in a given year there will be:
a) Exactly 7 power cuts.
b) At least 4 power cuts.
Transcribed Image Text:6. In a village, power cuts occur randomly at a rate of 3 per year. Find the probability that in a given year there will be: a) Exactly 7 power cuts. b) At least 4 power cuts.
8. A radar unit is used to measure speeds of cars on a motorway. The speeds are
normally distributed with a mean of 90 km/hr and a standard deviation of 10 km/hr.
what is the probability that a car picked at random is travelling at more than 100
km/hr?
Transcribed Image Text:8. A radar unit is used to measure speeds of cars on a motorway. The speeds are normally distributed with a mean of 90 km/hr and a standard deviation of 10 km/hr. what is the probability that a car picked at random is travelling at more than 100 km/hr?
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