Given the following information, determine if one of the brands is a better buy.
Brand A: 14 ounces for $44.66
Brand B: 20 ounces for $63.80
a. Both brands cost the same per ounce.
b. Brand A is the better buy.
C. Brand B is the better buy.
d. There is not enough information provided to determine the better buy.
Please select the best answer from the choices provided

my answer is$ 12

step-by-step explanation:

because 15 -2=12

25.3

step-by-step explanation:

1st step

add 3+6

=9

multipy 9*3

=37

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.

i’m kinda new to precal but your answer should be 21. hope i got it right.

step-by-step explanation: