Question #1a Almost every store at the mall is having a sale, but each is having a different kind of sale. Describe the sales

(a) Justin bought a pair of shoes at "Kevin's Kicks Shoe Store" for $102.00. They normally cost $120.00.

how much % did Justin get off

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

a) 0,0; 1,1; and 2,2

step-by-step explanation:

these have the exact same coordinates, thus they are the correct function.

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.

one triangle is 2.5 times bigger than the other triangle.