Question 4.4. Suppose a farmer sells bags of uncooked popcorn. The number of kernels in each of the bags is normally distributed with a mean of 830 kernels and a standard deviation of 28 kernels.

The farmer will only sell bags of popcorn with a z-score between –1.3 and 1.3. Which bags will the farmer sell?

Choose all answers that are correct.
(Points : 1)
Bag A containing 793 kernels
Bag B containing 866 kernels
Bag C containing 828 kernels
Bag D containing 799 kernels

Question

Question 4.4. Suppose a farmer sells bags of uncooked popcorn. The number of kernels in each of the bags is normally distributed with a mean of 830 kernels and a standard deviation of 28 kernels.

The farmer will only sell bags of popcorn with a z-score between –1.3 and 1.3. Which bags will the farmer sell?

Choose all answers that are correct. 
(Points : 1)
        Bag A containing 793 kernels 
        Bag B containing 866 kernels 
        Bag C containing 828 kernels 
        Bag D containing 799 kernels

anonymous · Answer

My anwser choices are B and D. Can someone check em?

imstuck · Answer

Set this one up much the same way, by taking the number of kernels in question (which in our case here is our unknown), subtracting from the the mean, then dividing by the standard deviation.  It would look like this then:|dw:1409675461183:dw|