Suppose the mean of a math exam score is 70 with a standard deviation of 12. If each score is increased by 4 and then each result is multiplied by 1.05, then new mean and standard deviation are O a.p = 77.7 and o = 16 O b. p = 77.5 and o = 12 O C.p = 77.7 and o = 12 O d.p = 74.0 and o = 12.05 O e.p= 77.7 and o = 12.6

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Suppose the mean of a math exam score is 70 with a standard deviation of 12. If each score is
increased by 4 and then each result is multiplied by 1.05, then new mean and standard
deviation are
O a. µ = 77.7 and o = 16
O b. µ = 77.5 and o = 12
O c.p = 77.7 and o = 12
O d. u = 74.0 and o = 12.05
O e.p= 77.7 and o = 12.6
Transcribed Image Text:Suppose the mean of a math exam score is 70 with a standard deviation of 12. If each score is increased by 4 and then each result is multiplied by 1.05, then new mean and standard deviation are O a. µ = 77.7 and o = 16 O b. µ = 77.5 and o = 12 O c.p = 77.7 and o = 12 O d. u = 74.0 and o = 12.05 O e.p= 77.7 and o = 12.6
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