Multiple choices 35/50
Answer (Choose 1 answer)
A. 87.22 and 8.59
B. 93.22 and 5.426
C. 92.3 and 31.99
D. None of the other choices is correct
E. 92.1 and 18.2
Next
An article in Technometrics (Vol.19, 1977, p.425) presents the following data on the motor fuel octane rating of several blends of gasoline:
88.5; 98.8; 89.6
Find the sample mean, sample variance of these data.
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