SOLUTION: in a population distribution, a score of x=28 corresponds to z=-1 and a score of x=34 corresponds to z=-.5 find the mean and standard deviation for the population
Algebra.Com
Question 1085080: in a population distribution, a score of x=28 corresponds to z=-1 and a score of x=34 corresponds to z=-.5 find the mean and standard deviation for the population
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
so
1.
and
2.
Substitute from 1,
Now use either equation to solve for .
RELATED QUESTIONS
In a population distribution, a score of X = 28 corresponds to a z = -6.00 and a score of (answered by ikleyn)
In a population of exam scores, a score of X=28 correspond to z= -1.00, and a score of... (answered by Boreal)
in a distribution of scores, X = 64 corresponds to z = 1, and X = 67 corresponds to z =... (answered by ewatrrr)
in a population of exam scores, a score of x=48 corresponds to z=+1.00 and a score of... (answered by stanbon)
for a population with a standard deviation of 12 a score of x=44 corresponds to z= -.5... (answered by jim_thompson5910)
I really need your help in solving this problem. I appreciate your time and efforts. Have (answered by mathmate)
The score on a mathematics exam have a mean of 70 and a standard deviation of 8. Find the (answered by Boreal)
in a sample distribution, x=56 corresponds to z= 1 and x=47 corresponds to z= -0.50. Find (answered by Boreal)
The scores on a mathematics exam have a mean of 65 and a standard deviation of 5. Find... (answered by Boreal)