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It is given that
Mean = 16
Std. deviation = 1
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- If some data is symmetrical and unimodal, and the mean and standard deviation are 230 and 40 respectively: a)How much of the data lies between 190 and 270 b)How much lies between 150 and 230 c)How much lies between 190 and 310Assume that the Leaf Area Index over a management area is normally distributed with a mean of 3 and a standard deviation of 0.2. One sample area shows a LAI of 2.76. How many standard deviations is this measurement from the mean?The average monthly sales of 2500 firms are normally distributed with mean $30000 and standard deviation of $15000. Find the number of firms with sales below $35000.
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