Probabaility that a pen manufactured by a company will be defective is 1/10.If 12 such pen are manufacturd,find yhe probability for?
1. exactly two will be defective
2. at least two will be defective
3.none will be defective
THANKS !!!!!!
Probabaility that a pen manufactured by a company will be defective is 1/10.If 12 such pen are manufacturd,find yhe probability for?
1. exactly two will be defective
2. at least two will be defective
3.none will be defective
THANKS !!!!!!
Are you familiar with the binomial distribution?
Let X be the random variable number of manufactured pens that are defective.
X ~ Binomial(n = 12, p = 1/10).
Calculate:
1. $\displaystyle \Pr(X = 2)$
2. $\displaystyle \Pr(X \geq 2) = 1 - \Pr(X \leq 1)$
3. $\displaystyle \Pr(X = 0)$.