The weight of a tub of ice-cream from a certain brand is normally distributed with mean of 250g and a standard deviation of 30g If a tub of ice-cream is randomly selected, What is the probability that its weight is more than 260g? What is the probability that its weight is between 225g and 270g? If 20% of the tubs is above a certain weight W, find the value of W.

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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.