Math Problem Statement

STA 100 Final Dataset.xlsx

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based on the data given in the attached dataset, solve the following questions:

  1. Let Z represent the average monthly fuel consumption in liters. Calculate the probability distribution of Z and find the probability that a randomly selected household consumes between 20 and 50 liters of fuel per month.2) Define a random variable W representing monthly fuel spending by households. Calculate the probability distribution of W and determine the probability that a randomly selected household spends more than 3000 INR on fuel monthly.

  2. Let W represent spending on fuel. Calculate the conditional distribution of W given that a household consumes Petrol. Determine the probability that a household using Petrol spends more than 3000 INR monthly on fuel.

  3. Let X and Y represent the number of people and the monthly spending on fuel in a household, respectively. Determine the joint probability distribution P(X,Y) and find the probability that a household has 4 people and spends more than Rs. 7000. Compute the marginal distribution of X and Y, and find the marginal probability that a household spends exactly Rs. 5000 monthly.

Solution

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Math Problem Analysis

Mathematical Concepts

Probability Distribution
Random Variables
Joint Probability
Conditional Probability

Formulas

P(Z) for probability distribution
P(W) for fuel spending
P(W|Petrol) for conditional probability
P(X,Y) for joint probability

Theorems

Law of Total Probability
Bayes' Theorem
Joint Distribution Theorem

Suitable Grade Level

Grades 11-12