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March 4, 2015

March 4, 2015

Posted by **siddhi** on Tuesday, May 1, 2012 at 8:20am.

NUMBER OF SALES ( X ) 0 1 2 3 4 5

PROBABILITY [P( X )] 0.15 0.25 0.25 ? 0.10 0.05

A. PLEASE FILL IN THE MISSING PROBABILITY FOR X=3 IN THE TABLE ABOVE (CELL WITH “?” MARK)

B. CALCULATE THE EXPECTED NUMBER AND VARIANCE OF ARRIVALS IN 10-MIN INTERVAL.

- math -
**siddhi**, Tuesday, May 1, 2012 at 8:22amA MAIL-ORDER FIRM HAS A CIRCULAR WHICH ELICITS A 10 % RESPONSE RATE. SUPPOSE 20 OF THE CIRCULARS ARE MAILED AS A MARKET TEST IN A NEW GEOGRAPHIC AREA. ASSUMING THAT THE 10% RESPONSE RATE IS APPLICABLE IN THE NEW AREA, DETERMINE THE PROBABILITIES OF THE FOLLOWING EVENTS:

A. NO ONE RESPONDS

B. A MAJORITY OF THE PEOPLE RESPOND

C. WHAT IS THE EXPECTED NUMBER OF PEOPLE WILL RESPOND?

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