Homework Help is Here – Start Your Trial Now!
Math
Probability
2. The manager of a stockroom in a factory knows from her study of record that x, the daily demand ( number of times used per day) for a certain tool, has the following probability distributions Demand 1 2 Probability 0.2 0.6 0.5 That is, 50% of the daily records show that the total was used one time. Find the expected daily demand for the tool and the variance.

2. The manager of a stockroom in a factory knows from her study of record that x, the daily demand ( number of times used per day) for a certain tool, has the following probability distributions Demand 1 2 Probability 0.2 0.6 0.5 That is, 50% of the daily records show that the total was used one time. Find the expected daily demand for the tool and the variance.

A First Course in Probability (10th Edition)
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...
See similar textbooks
icon
Related questions
Question

Please help me solve number 3 only tutor. Thank you so much!

2. The manager of a stockroom in a factory knows from her study of record that x, the daily demand ( number of times used per day) for a certain tool, has the following probability distributions Demand 1 2 Probability 0.2 0.6 0.5 That is, 50% of the daily records show that the total was used one time. Find the expected daily demand for the tool and the variance. 3. Refer to problem 2, suppose it cost P150 each time the tool is used. Find the mean and variance of the daily costs for use of this tool.
Transcribed Image Text:2. The manager of a stockroom in a factory knows from her study of record that x, the daily demand ( number of times used per day) for a certain tool, has the following probability distributions Demand 1 2 Probability 0.2 0.6 0.5 That is, 50% of the daily records show that the total was used one time. Find the expected daily demand for the tool and the variance. 3. Refer to problem 2, suppose it cost P150 each time the tool is used. Find the mean and variance of the daily costs for use of this tool.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer