Hi
Binomial distribution: p - .14, n = 750
Using the normal approximation and the NOted continuity correction factor.
(the continuity correction factor used as a Binomial Distribution is not continuous)
µ = .14*750 = 105, and σ =
= 9.5026
Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus
a. P(x = 106) = binompdf(750,.14,106) = .042 0r normpdf( 106,105,9.5026) = .042
with continuity correction factor, normcdf(105.5,106.5, 9.5026, 105)=.042
b. P x ≥ 106) = normcdf(105.5,9999, 9.5026, 105) = .479
c. P(x<106) = P(x <105.5) = normcdf(-9999,105.5, 9.5026, 105)= .521
d. P(104 ≤ x ≤ 106) = normcdf(103.5,106.5, 9.5026, 105) =.1254
Wish You the Best in your Studies.