14. De la o rafinărie pleacă spre o statie de alimentare cu combustibil lichid trei
transporturi. Dacă în al doilea transport este o cantitate cu 25% mai mare decat
în primul transport, iar în cel de al treilea transport, din cantitatea celui de-al
doilea transport şi ştiind că stația a achiziţionat de la rafinărie in total 34875 1 de
combustibil, aflați ce cantitate de combustibil s-a adus in fiecare transport.

don't give

take it once

try and try and you will not

happy to

pls mark as brainliest

6.5

step-by-step explanation:

you said it was in the question

~courtney

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.