Unit Test #73
It is known that the number of accidents on a motorway occur at an average of 25 every year. X is a random variable for the number of accidents.
What type of probability distribution is X?
A B C D
Could the normal distribution be used as a suitable approximation for X?
In question 1, if the normal distribution was used, what would be the standard deviation of the normal approximation?
In question 1, what is the probability that there will be more than 30 accidents?
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