Question 751665

Find the probability that less than 6 patients experienced dizziness.

X ~ Binomial(15, 0.45)
P(X < 6) = {{{sum((matrix(2,1,15,x))(0.45^x)(0.55^(15 - x)),x = 0,5)}}} = {{{highlight(0.26076)}}}


Find the probability that at least 7 patients experienced dizziness.

X ~ Binomial(15, 0.45)
P(X &#8805; 7) = {{{sum((matrix(2,1,15,x))(0.45^x)(0.55^(15 - x)),x = 7,15)}}} = {{{highlight(0.54784)}}}


Find the probability that at most 4 patients did NOT experience dizziness.

X ~ Binomial(15, 0.55)
P(X &#8804; 4) = {{{sum((matrix(2,1,15,x))(0.55^x)(0.45^(15 - x)),x = 0,4)}}} = {{{highlight(0.02547)}}}