Question
The annual snowfall in a town can be represented by the Normal model N(46, 6.8).
In about 2.5% of the years, the annual snowfall in this town will exceed:
A) 46 inches
B) 39.2 inches
C) 52.8 inches
D) 59.6 inches
E) 66.4 inches
I don't know how to set this problem up to choose an answer? I think I would use the empirical rule, but I don't know how to use that for this problem...
In about 2.5% of the years, the annual snowfall in this town will exceed:
A) 46 inches
B) 39.2 inches
C) 52.8 inches
D) 59.6 inches
E) 66.4 inches
I don't know how to set this problem up to choose an answer? I think I would use the empirical rule, but I don't know how to use that for this problem...
Answers
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.025) related to a Z score. Insert the Z score and other data in the equation above and solve for the score.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.025) related to a Z score. Insert the Z score and other data in the equation above and solve for the score.