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The lengths of pregnancies in a small town are normally distributed with a mean of 268 days and a standa deviation of 16 days. What proportion of pregnancies last fewer than 286 days? Give your answer rounded to 4 places after the decimal. P(X < 286 days) Question Help: ” Message instructor D Post to forum Submit Question

A manufacturer knows that their items have a normally distributed length, with a mean of 15.7 cm and standard deviation of 0.09 cm. Any items less than 15.53 cm long will be discarded. Approximately what percentage of their items have a length below this threshold? Give your answer as a percentage, rounded to 2 places after the decimal. Here is the link to the Geogebra Normal calculator I use in the video (you will probably want to bookmark this). 0.03 X % of items are less than 15.53 cm long