Question 11, thank you!

$ 5 M Inbox (17) - kc3 Announcement Course Hero Course Hero Course Hero Quiz: Home X TC myTC - Look Up Search Results | + V X O A https://tc.instructure.com/courses/14070/quizzes/9269/take O 0.1111 D Question 11 0.4 pts 9 A police car visits a given neighborhood a random number of times a per evening. p (x) is given by X 1 2 3 P(C) .1 .6 .2 1 a. Find E (X) = 1.30 ? b. Find variance, o' = [ Select ] V D Question 12 0.3 pts There are one hundred first year engineering students at Metropolis University with two areas of concentration, chemical engineering or electrical engineering. Half of the students are male. Of the male students, thirty of them are chemical engineering majors. Forty of the students are majoring in electrical -71 engineering. What is the probability that a randomly chosen student will be female and an electrical engineering major? Type here to search O e a W 9:21 PM 7/7/2020