It takes
2020
20
20
hours and
$400\$400
$400
dollar sign, 400
to interview a candidate, and it takes
120120
120
120
hours and
$3600\$3600
$3600
dollar sign, 3600
to train an employee.
A company has less than
$95000\$95000
$95000
dollar sign, 95000
to interview and train employees, and it wants to spend at most
470470
470
470
hours to do so.
Let
CC
C
C
denote the number of candidates they interview and
EE
E
E
the number of employees they train.

what are ur choices?

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1

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.