a well-mixed cookie dough will produce cookies with a mean of 5 chocolate chips apiece.
what is the probability of getting a cookie with more than 4 chips?
Poisson Distribution uses the formula: P(x; μ) = (e-μ)
(μx) / x!
e is always a constant number of 2.71828
x is the number you want to evaluate the probability of
μ is the average, or mean.
So, you would use:
Worked out, P(4;5)=0.559506714934787
SO: the probability of receiving a cookie with more than 4
chips is 0.559506714934787
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