Over a period of 15 years, the attrition rate in a company has been observed to be an average 10% every year. find the probability that exactly 5 employees chosen randomly from a team of 40 will quit in the year ahead.

Probability that exactly 5 employees chosen randomly from a team of 40 will quit in the year ahead is 0.165.

Step-by-step explanation:

Since we have given that

Total number of employees = 40

Number of employees are going to quit in the year ahead = 5

Rate of attrition = 10%

We will use "Binomial distribution":

Here, n = 40

x= 5

p = 0.1

q = 1-0.1=0.9

Hence, Probability that exactly 5 employees chosen randomly from a team of 40 will quit in the year ahead is 0.165.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

what statement? is there an image?