Answer:
5.5 gallons to 6.9 gallons
Step-by-step explanation:
Daily a cow
produces a mean of 6.2 gallons (average
of 6.2 gallons, meaning they already
found the mean, "averaged" it out for
you) with a deviation of 7 gallons ("give
or take" .7 gallons). On any given day
(throw these words out) 68% of the cows
(don't need this information to answer
the question either, thrown in to confuse
you) will produce an amount of milk
within which of the following ranges?
Just subtract the deviation ("give or
take number").7 gallons from the mean
(average (already determined)) 6.2
gallons which is 5.5 gallons THEN add
the deviation ("give or take number").
7 gallons to the mean (average (already
determined)) 6.2 gallons which is 6.9
gallons. Your answer is A 5.5 gallons to
6.9 gallons. You don't even have to go
crazy on the math on this question you
can rule them all out but A immediately
with subtracting .7 from 6.2.
hope it helps!