Math Problem Statement

The table shows claims and their probabilities for an insurance company. Amount of claim ​(to the nearest​ $20,000) Probability ​$0 0.70 ​$20,000 0.18 ​$40,000 0.08 ​$60,000 0.02 ​$80,000 0.01 ​$100,000 0.01

Question content area bottom Part 1 a.  Calculate the expected value. ​$    enter your response here

Solution

To calculate the expected value, we use the formula for expected value E(X)E(X) of a discrete random variable:

E(X)=(Amount of Claim×Probability)E(X) = \sum \left( \text{Amount of Claim} \times \text{Probability} \right)

Given the dataTo calculate the expected value, we use the formula for expected value E(X)E(X) of a discrete random variable:

E(X)=(Amount of Claim×Probability)E(X) = \sum \left( \text{Amount of Claim} \times \text{Probability} \right)

Given the

  • $0\$0 with probability 0.700.70
  • $20,000\$20,000 with probability 0.180.18
  • $40,000\$40,000 with probability 0.080.08
  • $60,000\$60,000 with probability 0.020.02
  • $80,000\$80,000 with probability 0.010.01
  • $100,000\$100,000 with probability 0.010.01

Let's calculate the expected value:

E(X)=(0×0.70)+(20,000×0.18)+(40,000×0.08)+(60,000×0.02)+(80,000×0.01)+(100,000×0.01)E(X) = (0 \times 0.70) + (20,000 \times 0.18) + (40,000 \times 0.08) + (60,000 \times 0.02) + (80,000 \times 0.01) + (100,000 \times 0.01)

I'll compute this now.# Defining the amounts and their corresponding probabilities amounts = [0, 20000, 40000, 60000, 80000, 100000] probabilities = [0.70, 0.18, 0.08, 0.02, 0.01, 0.01]

Calculating the expected value

expected_value = sum(amount * prob for amount, prob in zip(amounts, probabilities)) expected_valueThe expected value of the claims is $9,800.

Would you like more details or have any questions?

Here are 5 related questions for further practice:

  1. How does changing the probability of a $40,000 claim affect the expected value?
  2. What is the variance of this distribution?
  3. What would happen to the expected value if the probability of a $0 claim decreased?
  4. How would you compute the standard deviation for this set of claims?
  5. If the probability of a $100,000 claim increased, how would that affect the risk to the insurance company?

Tip: The expected value is a measure of the center or "average" of a probability distribution. It's useful in assessing long-term outcomes in insurance and other probabilistic situations.

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Math Problem Analysis

Mathematical Concepts

Probability
Expected Value

Formulas

Expected Value E(X) = Σ (Amount of Claim × Probability)

Theorems

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Suitable Grade Level

Grades 10-12