SOLUTION: a. Determine the probability distribution, in table form and graphical form, for the number of students selected to be in a six-person fund-raising committee from 9 students and 1
Algebra.Com
Question 1159931: a. Determine the probability distribution, in table form and graphical form, for the number of students selected to be in a six-person fund-raising committee from 9 students and 11 teachers.
b. What is the expected number of students on the committee?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
for 0, it is 9C0*11C6/20C6=462/38760=0.0119
for 1, it is 9C1*11C5/38760=4158/38760=0.1073
for 2, 11880/38760=0.3065
for 3, 9C3*11C3/38760=0.3576
for 4, 9C4*11C2/38760=6940/38760=0.1788
for 5, 9C5*11C1/38760=0.0358
for 6, probability is 0.0022
expected value of students is sum of number * probability
=0+0.1073+.6130+1.0728+0.7032+0.1790+0.0132=2.6885 students.
RELATED QUESTIONS
1. A school’s faith awareness group consists of 15 students and 3 teachers. If four... (answered by Boreal)
1.Determine the probability distribution for the number of girls in a family with 4... (answered by Fombitz)
How many courses? At a small liberal arts college, students can register for one to six... (answered by math_tutor2020)
There are 11 girls and 9 boys in Form 1A and 10 girls and 9 boys in Form 1B in a school.... (answered by robertb)
There are 11 girls and 9 boys in Form 1A and 10 girls and 9 boys in Form 1B in a school.... (answered by greenestamps)
A soft drink company is running a promotion giving away free mp3 downloads, using the... (answered by Fombitz)
A soft drink company is running a promotion giving away free mp3 downloads,
using the... (answered by greenestamps)
A frequency distribution for the ages of the 40 students (including
undergraduate and... (answered by ikleyn)
1. For this lab assignment, the experiment is to roll a fair die twice. If the random... (answered by stanbon)