Question 58914: Dear Dr. Professor,
I would really appreaciate if you can help me with the following problem I need to solve.
"The director of admissions at Kinzua University in Nova Scotia estimated the distribution estimated the distribution of student admissions fot the fall semester on the basis of past experience. What is the expected number of admissions for the fall semester? Compute the variance and the standard variation of the number of admissions."
Data
Admissions- probability
1,000- .6
1,200- .3
1,500- .1
Please can you help me?
Kind regards,
Claudia Cardenas
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! I used a TI-83 to generate these results.
Put the big numbers in L1; put the p's in L2.
I put the product of L1*L2 in L3 and ran 1-VAR
STATS on it to get:
Expected Value or x-bar=0.6*1000+0.3*1200+0.1*1500-370
sx=225.166605
sigmax= 183.8477631
Cheers,
Stan H.
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