Company wants to hire no more then [MATH]140[/MATH] workers. Competence test is being held, there are [MATH]450 [/MATH]people taking it. Probability of passing test is [MATH]0.3[/MATH], whats the probability that company will have problems with excess candidaties?
X-Number of people that passed the test is random variable with binomial distribution. Parameters [MATH]n=450, p=0.3[/MATH]
[MATH]P(X>140)=1-P(X\leq 140)[/MATH]
What should be my next step in this exercise?
There's a hint from my profesor on website but I am not sure how to use it:
"find value of standard normal distribution from tables"
X-Number of people that passed the test is random variable with binomial distribution. Parameters [MATH]n=450, p=0.3[/MATH]
[MATH]P(X>140)=1-P(X\leq 140)[/MATH]
What should be my next step in this exercise?
There's a hint from my profesor on website but I am not sure how to use it:
"find value of standard normal distribution from tables"