I need to how to work this out
1 answer:
You might be interested in
Answer:
a) 0.0568
Step-by-step explanation:
Let's define the random variable X.
X : ''Number of adults concerned that employers are monitoring phone calls''
X ~ Bi (n,p)
Where n is the sample size and p is the success probability.
n is equal to 6 in this exercise and p = 0.38
We are going to call ''a success'' to an adult concerned that employers are monitoring phone calls.
The probability function for X is
Where nCx is the combinatorial number define as
For a) we are looking for
There is a probability of 0.0568 that out of six adults, none is concerned that employers are monitoring phone calls.