Example of probability, Mathematics

Example of Probability:


By using a die, what is the probability of rolling two 3s in a row?


From the previous example, there is a 1/6 chance of rolling a three on a single throw. Thus, the chance of rolling two threes is:

1/6 x 1/6 = 1/36 one in 36 tries.


An elementary game is played through rolling a die and drawing a ball from a bag holding 3 white and 7 black balls. The player wins while he rolls a number less than 4 and draws a black ball.  What is the probability of winning in the first attempt?


There are 3 successful outcomes for rolling less than a 4, (i.e. 1,2,3).  The probability of rolling a 3 or less is:

3/(3+3) = 3/6 = 1/2 or 50%.

A probability of drawing a black ball is:

7/(7+3) = 7/10.

Thus, the probability of both events happening at the similar time is:

7/10 x 1/2 = 7/20.

Posted Date: 2/11/2013 12:01:20 AM | Location : United States

Related Discussions:- Example of probability, Assignment Help, Ask Question on Example of probability, Get Answer, Expert's Help, Example of probability Discussions

Write discussion on Example of probability
Your posts are moderated
Related Questions
Q. Explain Binomial Distribution? Ans. The binomial distribution occurs when you are considering the probability function of a binomial experiment. Binomial Experiment

Q. What is Box-and-Whisker Plot? Ans. Line graphs or stem-and-leaf plots become difficult to manage when there is a large amount of data. Box-and-whisker plots help summa

The number of integral pairs (x,y) satisfying the equation x^2=y^2+1294 is a)2 b)3 c)4 d)None of these

Sherman took his pulse for 10 seconds and counted 11 beats. What is Sherman's pulse rate in beats per minute? A 10 second count is 1/6 of a minute. To find out the number of be

3 items x, y and z will have 6 different permutations however only one combination. The given formular is generally used to determine the number of combinations in a described situ

X-intercept  If an intercept crosses the x-axis we will call it as x-intercept .  Y-intercept Similar, if an intercept crosses the y-axis we will call it as a y-inter

It is difficult to produce the individual answers and the insights that they were providing. But, let's look at some broad patterns that we found, which are similar to those that o

1. Consider the trigonometric function f(t) = (a) What is the amplitude of f(t)? (b) What is the period of f(t)? (c) What are the maximum and minimum values attained by

Nora works at a laboratory as a chemist . she was told to prepare 100L of 25% alcohol solution. she has on hand of a 15% percent alcohol solution and a 40% alcohol solution which s

Q. Negative Signs in Fractions? It really doesn't matter where you put a negative sign in a fraction.  The following are all the same: The negative sign can go in