SOLUTION: The weights of bags of ready-to-eat salad are normally distributed with a mean of 290 grams and a standard deviation of 10 grams. What percent of the bags weigh less than 280 grams
Algebra ->
Probability-and-statistics
-> SOLUTION: The weights of bags of ready-to-eat salad are normally distributed with a mean of 290 grams and a standard deviation of 10 grams. What percent of the bags weigh less than 280 grams
Log On
Question 1011103: The weights of bags of ready-to-eat salad are normally distributed with a mean of 290 grams and a standard deviation of 10 grams. What percent of the bags weigh less than 280 grams? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The weights of bags of ready-to-eat salad are normally distributed with a mean of 290 grams and a standard deviation of 10 grams. What percent of the bags weigh less than 280 grams?
---------
z(280) = (280-290)/10 = -10/10 = -1
---------
P(x < 280) = P(z < -1) = normalcdf(-100,-1) = 0.1587
-------------
Cheers,
Stan H.
-------------
(