# Probability Problem Solving

As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more.Plus, get practice tests, quizzes, and personalized coaching to help you succeed.b) What is the probability that the class has at least 3 left-handed students?

Tags: Critical Essay On CrucibleContoh Thesis S2 MapWriting An Essay About YourselfNarrative Essay On TeamworkCyber Cafe Business Plan DownloadWriting Essays In ExamsEconomics Term Paper

Sol: Sample space = [HHH, HHT, HTH, THH, TTH, THT, HTT, TTT] Total number of ways = 2 × 2 × 2 = 8. Cases = 7 P (A) = 7/8 OR P (of getting at least one head) = 1 – P (no head)⇒ 1 – (1/8) = 7/8Example 2: Find the probability of getting a numbered card when a card is drawn from the pack of 52 cards. Numbered Cards = (2, 3, 4, 5, 6, 7, 8, 9, 10) 9 from each suit 4 × 9 = 36 P (E) = 36/52 = 9/13Example 3: There are 5 green 7 red balls. P (getting a sum of 22 or more) = 15/1296 = 5/432 = 36 Since the number on a die should be multiple of the other, the possibilities are (1, 1) (2, 2) (3, 3) ------ (6, 6) --- 6 ways (2, 1) (1, 2) (1, 4) (4, 1) (1, 3) (3, 1) (1, 5) (5, 1) (6, 1) (1, 6) --- 10 ways (2, 4) (4, 2) (2, 6) (6, 2) (3, 6) (6, 3) -- 6 ways Favorable cases are = 6 10 6 = 22.

Favorable cases = (1, 6) (6, 1) (2, 5) (5, 2) (3, 4) (4, 3) --- 6 ways. Sol: (i) honor cards = (A, J, Q, K) 4 cards from each suits = 4 × 4 = 16 P (honor card) = 16/52 = 4/13 (ii) face cards = (J, Q, K) 3 cards from each suit = 3 × 4 = 12 Cards. So there are total 7 cases out of which (Sat, Sun) (Sun, Mon) are two favorable cases. of ways in which two particular people sit together is 13! The probability of two particular persons sitting together 13! 1 of the bags is selected at random and a ball is drawn from it.

P (A) = 6/36 = 1/6Example 5: 1 card is drawn at random from the pack of 52 cards. P (face Card) = 12/52 = 3/13Example 7: Three dice are rolled together. So, P (53 Sundays) = 2 / 7 Now, P(52 Sundays) P(53 Sundays) = 1 So, P (52 Sundays) = 1 - P(53 Sundays) = 1 – (2/7) = (5/7)Example 14: Fifteen people sit around a circular table. If the ball drawn is red, find the probability that it is drawn from the third bag.

Related Topics: Introduction To Probability Probability Tree Diagrams Theoretical vs.

Experimental Probability In these lessons, we will learn how to solve some probability word problems.

• ###### Probability Problems solutions, examples, videos

Probability problems, probability, probability examples, how to solve probability word problems, probability based on area, examples with step by step solutions.…

• ###### Probability - Problem Solving Brilliant Math & Science Wiki

To solve problems on this page, you should be familiar with Uniform Probability Probability - By Outcomes Probability - Rule of Sum Probability - Rule of Product.…

• ###### Probability Questions with Solutions

Questions on finding probabilities. Tutorial on finding the probability of an event. In what. A die is rolled, find the probability that an even number is obtained.…

• ###### Probability Solved Examples - Hitbullseye

Learn the basics probability questions with the help of our given solved examples that help you to understand the concept in the better way.…

• ###### Probability Theory, solved examples and practice questions.

Jul 3, 2015. How to solve probability questions in GMAT math sections. All about probability meaning, definition, theory, formulas and examples.…

• ###### Math Help Learning How to Solve Probability Problems for.

Dec 29, 2010. Probability problems can sometimes be the most difficult word problems to solve. Although the math is very simple, there are a lot of steps that.…