A chemical supply company currently has instock 100 lb of a certain chemical, which it sellsto customers in 5-lb lots. Let X = the number oflots ordered by a randomly chosen customer, andsuppose that X has pmf1234p(x)| 0.20.40.30.1a) Compute E(X) and V (X).b) Compute the expected number of pounds left afterthe next customer's order is shipped and thevariance of the number of pounds left.STAT310L Drob

The variable X denotes the number of lots ordered by a randomly chosen customer.

Answered: a) Compute E(X) and V (X). b) Compute…

a) Compute E(X) and V (X). b) Compute the expected number of pounds left after the next customer's order is shipped and the variance of the number of pounds left.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

Question

A chemical supply company currently has in
stock 100 lb of a certain chemical, which it sells
to customers in 5-lb lots. Let X = the number of
lots ordered by a randomly chosen customer, and
suppose that X has pmf
1
2
3
4
p(x)| 0.2
0.4
0.3
0.1
a) Compute E(X) and V (X).
b) Compute the expected number of pounds left after
the next customer's order is shipped and the
variance of the number of pounds left.
STAT310L Drob

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