SOLUTION: If (60%) of Jordanian adult males smoke. Consider a simple random sample of 8 male adults; 1) The probability that the number of smokers in that sample would be exactly 4 is...

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Question 852520: If (60%) of Jordanian adult males smoke. Consider a simple random sample of 8 male
adults;
1) The probability that the number of smokers in that sample would be exactly 4 is...
2) The probability that the number of smokers in that sample would be more than 4 is:
Thanks in advance
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Using TI: The syntax is binompdf(n, p, largest x-value) 0r binomcdf(n, p, largest x-value).

 p = .60,  n = 8

P(x = 4) = binompdf(8,.6,4)

P(x > 4) = 1 - binomcdf(8,.6,4)

Or for 1)

P(x) = nCx(p)^x(q)^(n-x) }}} 

P(4) = 8C4 (.6)^4(.4)^4