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## C/C++, Java Programming, Computer Science Tutor

### Fremont, CA (94538)

 Travel radius 25 miles Hourly fee \$30.00 Save up to 15%
 Usually responds in about 5 hours You don't pay for tutoring unless you find a good fit! You don't pay for tutoring unless you find a good fit!

# Eric's Resources

Hi Jake, You already have the answer for 2a, but may want to check 2b. Let's start with #3. You have two equations, y = 12x + 5 y = 7x - 10 In this case, you can already replace/substitute the value of y. 12x + 5 = 7x - 10 From here, you can solve for x. Once...

# probability question- In a proposed business venture, a businesswoman estimated there is a 55 percent chance that she will make \$61000 and a 45 percent chance t (answer)

Hi Julita, The expected value for a probability question is simply the summation of P * X of all components, where P is the probability of X (the value) occurring. i.e. E(X) = P1X1 + P2X2 + ... + PnXn In this case, you would have 0.55 * 61000 + 0.45 * -66000 = Expected...

# How do I calculate expected value (answer)

Hi Bob, The expected value for a probability question is simply the summation of P * X of all components, where P is the probability of X (the event) occurring. i.e. E(X) = P1X1 + P2X2 + ... + PnXn What are you trying to find the expected value of?

### Eric's Hourly Rate

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