Question 1174089
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Hi,
 P(BA) = 1/2 and P(CS) = 1/3 and P(OTHER) = 1/6

 12 Students:             

(a) What is the probability that at least 6 (1 more than half) are from BA department 
        P (x ≥ 6BA) = 1 -  P (x ≤ 5BA) =  1 - binomcdf(12, .5, 5)

(b) What is the probability that none is from media department 
       P (none from the media department) = 1- 1/6 =  5/6 

(c) What is the probability that at most three are from CS Department
        P( x ≤ 3) = binomcdf(12, .3333, 3)

__________________

Question No 2 (B): Assume that the number of road accidents in any month 
are no of characters in your first name. 

What is the probability <u>fewer than three</u> accidents will occur in a particular month?
 
Poisson Distribution: Am Using μ  = 5  
 P(x ≤ 2) = poissoncdf (2,5) = .1247

Use Your calculator.  Important You feel comfortable using it.

Wish You the Best in your Studies.
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