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ACTIVITY 3.1 SOLVE THE FOLLOWING PROBLEMS 1. A researche surveyed the household in a remote. The random variable X represents the number of high school graduates in the households. The probability distribution of X is shown below. 2 1 3 4 P(x) 0.02 0.18 0.30 0.40 0.10 Find the expected value and variance of X. Solution P(x) xP(x) x²P{x) 1 3 4 E[XP(x)] = Z[X*P{x)] = a. Expected b. Variance to the l osoital

ACTIVITY 3.1 SOLVE THE FOLLOWING PROBLEMS 1. A researche surveyed the household in a remote. The random variable X represents the number of high school graduates in the households. The probability distribution of X is shown below. 2 1 3 4 P(x) 0.02 0.18 0.30 0.40 0.10 Find the expected value and variance of X. Solution P(x) xP(x) x²P{x) 1 3 4 E[XP(x)] = Z[X*P{x)] = a. Expected b. Variance to the l osoital

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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ACTIVITY 3.1 SOLVE THE FOLLOWING PROBLEMS 1. A researche: surveyed the household in a remote. The random variable X represents the nuimter or high school graduates in the households. The probability distribution of X is shown below. 1 2 3 4 P(x) 0.02 0.18 0.30 0.40 0.10 Find the expected value and variance of X. Solution P(x) xP(x) xP{x) 1 3 4 Z[xP(x)] = Z[X*P({x)] = а. Еxpected b. Variancee 1. The random variable x represents the number of taxis cabs a doctor meets on his way to thel'ospital. The probability distribution of X is given in the following distribution table. 3 4 5 P(x) 0.01 0.15 0.20 0.25 0.30 0.09 Find the expected value and variance of X. Soiution P(x) xP(x) xP(x) 2 3 4 5 E[xP{x)] = ExP{x)] = %3D a. Expecte:d Value b. Variance ..... au ..
Transcribed Image Text:ACTIVITY 3.1 SOLVE THE FOLLOWING PROBLEMS 1. A researche: surveyed the household in a remote. The random variable X represents the nuimter or high school graduates in the households. The probability distribution of X is shown below. 1 2 3 4 P(x) 0.02 0.18 0.30 0.40 0.10 Find the expected value and variance of X. Solution P(x) xP(x) xP{x) 1 3 4 Z[xP(x)] = Z[X*P({x)] = а. Еxpected b. Variancee 1. The random variable x represents the number of taxis cabs a doctor meets on his way to thel'ospital. The probability distribution of X is given in the following distribution table. 3 4 5 P(x) 0.01 0.15 0.20 0.25 0.30 0.09 Find the expected value and variance of X. Soiution P(x) xP(x) xP(x) 2 3 4 5 E[xP{x)] = ExP{x)] = %3D a. Expecte:d Value b. Variance ..... au ..
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