document.write( "Question 614426: Between the hours of 2 and 4pm, the average number of phone calls per minute coming into the switchboard of a company is 1.5. Find the probability that during a particular five-minute period there will be
\n" ); document.write( "a. 0,
\n" ); document.write( "b. 2,
\n" ); document.write( "c. 4 or fewer,
\n" ); document.write( "d. More than 7,
\n" ); document.write( "phone calls.
\n" ); document.write( "

Algebra.Com's Answer #386538 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi
\n" ); document.write( "Average Calls in 1.5/min OR 7.5/5min
\n" ); document.write( "Using stattrek.com Poisson Distribution Calculator: 7.5/5min average rate of success
\n" ); document.write( "a. P(x=0) = .0006
\n" ); document.write( " b. P(x=2) = .0156
\n" ); document.write( " c. P(x ≤4) = .1321
\n" ); document.write( " d. P(x >7) = .4737
\n" ); document.write( " \n" ); document.write( "
\n" );