Quote:
The weights of python snakes are normally distributed with a mean of 110 kg and a standard deviation of 8 kg. If 68% of pythons weigh within one standard deviation of the mean and 95% of pythons weigh within two standard deviations of the mean, what percent of pythons weigh from 94 to 102 kg?
Step 1: Understanding the questionPlotting normal distribution curve with a mean of 110 and standard deviation of 8, refer to the attachment
When 95% of the readings lies between 94 to 126 and 68% lie between 102 and 118, remaining region ie blue = 95% - 68% = 27%
Hence, percent between 94 to 102 = 27/2 = 13.5%
E is correct
Attachments
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