Question

Fill in the missing information.

Answer 1

Answer:

Standard deviation         Percentage from table    Number of bags out of 600

-2 to -1 (47 to 48.5 lbs)    13.6%                                   82

-1 to 0 (48.5  to 50 lbs)     34.1%                                  205

0 to +1 (50  to 51.5 lbs)     34.1%                                  205

+1 to +2 (51.5  to 53 lbs)     13.6%                                  82

Step-by-step explanation

standard deviation is 1.5 lbs and mean is 50 lb, then:

mean - 2*standard deviation  = 47 lb

mean - 0*standard deviation  = 50 lb

mean + 2*standard deviation  = 53 lb

0.341*600 = 205

0.136*600 = 82

The percentages are shown in the figure attached.

Answer 2

Case 1 = 82
Case 2 = 205
Case 3 = 205
Case 4 = 82

Hope this helps