# What is the expectation of getting 5 on a roll of a dice?

Contents
Roll a… Probability
2 1/36 (2.778%)
3 2/36 (5.556%)
4 3/36 (8.333%)
5 4/36 (11.111%)

## What is the probability of getting a 5 when you roll a dice?

Probabilities for the two dice

Total Number of combinations Probability
4 3 8.33%
5 4 11.11%
6 5 13.89%
7 6 16.67%

## How many times would you expect to roll a 5?

There are six sides on a die. Five is one option out of six. If the cube is fair, then the probability of having “5” as one side is 1/6. Given that tossing dice are independent each other events, you may have “5” nearly 3000/6= 500 times.

## How do you find the expected value of a dice?

The expected value of the random variable is (in some sense) its average value. You compute it by multiplying each value x of the random variable by the probability P(X=x), and then adding up the results. So the average sum of dice is: E(X) = 2 . 1/36 + 3 . 2/36 + ….

## What is the mean of a dice roll?

The mean is the type of average most people are used to. To find the mean for a set of numbers, add the numbers together and divide by the number of numbers in the set. For example, if you roll two dice thirteen times and get 9, 4, 7, 6, 11, 9, 10, 7, 9, 7, 11, 5, and 4, add the numbers to produce a sum of 99.

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## What is the most common number to roll with 1 dice?

, and the least common rolls are 2 and 12, both with probability 1/36. For three six-sided dice, the most common rolls are 10 and 11, both with probability 1/8; and the least common rolls are 3 and 18, both with probability 1/216.

## How do you calculate the probability of a dice?

Think about a dice. When a dice is rolled there are 6 possible outcomes: 1, 2, 3, 4, 5 and 6. To find the probability of the event of rolling a 4, find the number of possible ways of rolling a 4 and divide it by the total number of possible outcomes.

## What is the probability of rolling a 4?

Two (6-sided) dice roll probability table

Roll a… Probability
4 3/36 (8.333%)
5 4/36 (11.111%)
6 5/36 (13.889%)
7 6/36 (16.667%)

## How many times will you get a six if you throw a dice 100 times?

About 9 times it will take 4 throws(36 throws) etc. Then you would add up ALL of those throws and divide by 100 and get6. 