A certain brand of yogurt is packed in tubs with masses that are normally distributed with mean of 1kg and a standard deviation of 50g. (a) Find the probability that a randomly selected tub weighs i. More than 950g, il. Between 950g and 1100g. (b) A box contains 20 such tubs. What is the probability that the mean mass for a tub is between 980g and 1030g?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A certain brand of yogurt is packed in tubs with masses that are normally distributed with
mean of 1kg and a standard deviation of 50g.
(a) Find the probability that a randomly selected tub weighs
i. More than 950g,
ii. Between 950g and 1100g.
(b) A box contains 20 such tubs. What is the probability that the mean mass for a tub is
between 980g and 1030g?
Transcribed Image Text:A certain brand of yogurt is packed in tubs with masses that are normally distributed with mean of 1kg and a standard deviation of 50g. (a) Find the probability that a randomly selected tub weighs i. More than 950g, ii. Between 950g and 1100g. (b) A box contains 20 such tubs. What is the probability that the mean mass for a tub is between 980g and 1030g?
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