The total number of rainstorms in a year in a particular river basin is a normally distributed random variable. The mean number of rainstorms per year is 35 and standard deviation is 5.5. (a) What is the probability that the number of rainstorms in a certain year is between 25 and 40? (b) What is the probability that the number of rainstorms in a certain year is less than 10? (c)What is the 95% dependable number of rainstorms in a year?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.