Contents

- 1 How do you find expected value on a TI 84?
- 2 How do you find the expected expectation in math?
- 3 How do you find expected value on TI 83?
- 4 How do you write Y1 on a TI 84?
- 5 How do you calculate expected value on a Casio calculator?
- 6 How do I calculate expected value in Excel?
- 7 What is the expected value of 1?
- 8 What is the use of expected value?

## How do you find expected value on a TI 84?

**Expected Value/Standard Deviation/Variance**

- Enter data into L1 and L2 as in the above.
- Press STAT cursor right to CALC and down to 1: 1-Var Stats.
- When you see 1-Var Stats on your home screen, add L1,L2 so that your screen reads 1-Var Stats L1,L2 and press ENTER.
- The expected value is the first number listed : x bar.

## How do you find the expected expectation in math?

The mathematical expectation of a random variable X is also known as the mean value of X. It is generally represented by the symbol μ; that is, **μ = E(X)**. Thus E(X − μ) = 0. Considering a constant c instead of the mean μ, the expected value of X − c [that is, E(X − c)] is termed the firstmoment of X taken about c.

## How do you find expected value on TI 83?

**Expected Value/Standard Deviation/Variance**

- Enter data into L1 and L2 as in the above.
- Press STAT cursor right to CALC and down to 1: 1-Var Stats.
- When you see 1-Var Stats on your home screen, add L1,L2 so that your screen reads 1-Var Stats L1,L2 and press ENTER.
- The expected value is the first number listed : x bar.

## How do you write Y1 on a TI 84?

Graph Y1. **Press 2nd [calc] 2 to select zero**. Note: If more than one graph is displayed press △ until the expression for Y1 appears at the top of the screen. Move the cursor to a point just to the left of a zero (or type in a number less than a zero) and press enter.

## How do you calculate expected value on a Casio calculator?

1:452:29Casio fx-9860: Discrete Probability, E(x) and standard deviationYouTube

## How do I calculate expected value in Excel?

To calculate expected value, you want to **sum up the products of the X's (Column A) times their probabilities (Column B)**. Start in cell C4 and type =B4*A4. Then drag that cell down to cell C9 and do the auto fill; this gives us each of the individual expected values, as shown below.

## What is the expected value of 1?

The expected value of a constant is just the constant, so for example **E(1) = 1**.

## What is the use of expected value?

Expected value is a commonly used financial concept. In finance, it indicates **the anticipated value of an investment in the future**. By determining the probabilities of possible scenarios, one can determine the EV of the scenarios.