Do number 62 Find the number of standard deviations from the mean. Round your an

Question

Do number 62
Find the number of standard deviations from the mean. Round your answer to two decimal places year there were 60 inches of snow. How many standard deviations from the mean is that? 62) a standard deviation of 1 62) The annual snowfall in a town has a mean of 35 inc A) 2.27 standard deviations above the mean C) 0.40 standard deviations above the mean B) 2.27 standard deviations below the mean D)0.40 standard deviations below the mear 63) The number of hours per day a college student spends on homework has a mean of 6 hours anda standard deviation of 1.25 hours. Yesterday she spent 3 hours on homework. How many standard B) 2.40 standard deviations below the mean deviations below the meanD) 1.20 standard deviations above the mean 63) deviations from the mean is that? A) 2.40 standard deviations above the mean

Explanation / Answer

62)

as we know that z score =(X-mean)/std devition

theerfore corresponding z score =(60-35)/11=2.27

as positive therefore 2.27 std deviaton above

option A is correct

63)

z score =(3-6)/1.25=-2.4

as negative therefore 2.4 std deviation below

option B is correct

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