Question 1172258
It is "Poisson"
a. This is e^(-6)*6^6/6!=0.1606
b. Find p(7) and p(8) and add to the above to get 0.4016
Can do by formula above or 2nd VARSpoissonpdf(6,7)ENTER  for p(7) with parameter 6
c. Can use 1-2nd VARS poissoncdf(6,6)=0.3937. This looks at the left side from 0 to 6, because 6 is not part of the required answer.
d. Can do this with 2nd VARS poissoncdf(6,5) and get 0.4457. Also, can recognize that a, c, and e include the entire distribution, and d is 1-p((a))-p((c))