Statistics Solutions

(Solution Library) Compute E(X) and var(X) for random variable X whose support -5,-1,0,2,3,6,7 has corresponding probabilities (5)/(19),(2)/(19),(5)/(19),(1)/(38),(5)/(38),(7)/(38),(1)/(38)

Question: Compute E(X) and var(X) for random variable X whose support \(\left\{ -5,-1,0,2,3,6,7 \right\}\) has corresponding probabilities

\[\left\{ \frac{5}{19},\frac{2}{19},\frac{5}{19},\frac{1}{38},\frac{5}{38},\frac{7}{38},\frac{1}{38} \right\}\]

Since I will compare your response to the exact values returned by TI-83 list algebra operations, if you don't use list algebra, then make sure that your computations have no roundoff error. If you use list algebra, then also provide the commands that gave E(X) and var(X), and identify which list variables held what data.

Price: $2.99
Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


∴ Other downloads you may be interested in ∴

log in to your account

Forgot password?
Don't have a membership account?
REGISTER

reset password

Back to
log in

sign up

Back to
log in