According to a study done by researchers at georgetown university, recent college graduates who majored in architecture have the highest unemploy- ment rate, at 13.9%. arts majors are next, with an 11.1% unemployment rate for recent graduates (source: georgetown center on education and the workforce). recent graduates are defined as eligible workers between the ages of 22 and 26. in a random sample of 200 recent architecture graduates, compute the a. expected number of grads who are unemployed. b. variance of the random variable "number of grads who are unemployed

The mean is 27.8

The required variance is 23.9358

Step-by-step explanation:

Consider the provided information.

Here the random sample size, n = 200

Unemployment rate is 13.9% = p = 0.139

Part (a) expected number of grads who are unemployed.

Hence, the mean is 27.8

Part (b) variance of the random variable "number of grads who are unemployed.

Hence, the required variance is 23.9358

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

bn,mn,n.vn.

step-by-step explanation: