66,969 questions

57,943 answers

747 comments

13,315 users

MathHomeworkAnswers.org is a free math help site for student, teachers and math enthusiasts. Ask and answer math questions in algebra I, algebra II, geometry, trigonometry, calculus, statistics, word problems and more. Register for free and earn points for questions, answers and posts. Math help is always 100% free.

Note: This site is intended to help students and non-students understand and practice math. we do not condone cheating. Users attempting to abuse the system will be permanently blocked from further use.

Most popular tags

algebra problems solving equations word problems calculating percentages geometry problems calculus problems fraction problems math trigonometry problems simplifying expressions solve for x rounding numbers order of operations pre algebra problems evaluate the expression slope intercept form algebra factoring probability math problem polynomials statistics problems please help me to answer this step by step. how to find y intercept algebra 2 problems solving inequalities equation of a line solving systems of equations by substitution logarithmic equations dividing fractions sequences and series help please answer this queastion as soon as possible. thank you :) word problem greatest common factor graphing linear equations geometric shapes square roots substitution method least common multiple factoring polynomials 6th grade math solving systems of equations solving equations with fractions long division http: mathhomeworkanswers.org ask# function of x plz. give this answer as soon as possible standard form of an equation ratio and proportion trig identity proving trigonometric identities solving equations with variables on both sides algebra problem least to greatest dividing decimals solving systems of equations by elimination slope of a line through 2 points precalculus problems domain of a function college algebra help me trinomial factoring algebraic expressions distributive property factors of a number perimeter of a rectangle solving quadratic equations slope of a line i need help with this fraction word problems help me!! equivalent fractions 8th grade math limit of a function differentiation how to find x intercept exponents division algebra 1 hw help asap area of a triangle geometry 10th grade elimination method simplifying fractions . inverse function differential equation greater than or less than integral area of a circle 7th grade math simplify geometry parallel lines standard deviation solving linear equations mixed numbers to improper fractions width of a rectangle solving triangles circumference of a circle number of sides of a polygon scientific notation problems percentages fractions lowest common denominator zeros of a function diameter of a circle solving systems of equations by graphing systems of equations containing three variables dividing polynomials prime factorization length of a rectangle story problems place value derivative of a function quadratic functions algebra word problems area of a rectangle mathematical proofs ( vertex of a parabola converting fractions to decimals calculus 5th grade math evaluating functions integers homework equation algebra 1 calculators least common denominator solve for y range of a function combining like terms radius of a circle greatest to least perpendicular lines finding the nth term unit conversion algebra 2 slope ) ordered pairs solving radical equations area word problems calculus problem calculate distance between two points common denominator functions multiplying fractions complex numbers because i don't understand set builder notation binomial expansion percents geometry word problems equation of a tangent line what is the answers? midpoint of a line show work simplifying radicals #math product of two consecutive numbers adding fractions absolute value ratios median help me please and show how to work it out round to the nearest tenth graphing functions 4th grade math solve graphing divisibility rules radicals statistics 1 () show every step to solve this problem factor by grouping significant figures math homework ? improper fractions to mixed numbers roots of polynomials volume of a cylinder subtracting fractions - derivatives pre-algebra problems how to complete the square multiplying polynomials percentage numbers http: mathhomeworkanswers.org ask?cat=# number patterns mixed numbers average rate of change pemdas integration please help solving quadratic equations by completing the square surface area of a prism simultaneous equations logarithms decimals http: mathhomeworkanswers.org ask# rounding decimals (explain this to me) solving equations with variables = perimeter of a triangle surface area of a cube implicit differentiation algebra1 maths rational irrational numbers place values reducing frations to lowest terms solving trigonometric equations matrices need help lcm dividing how do you solve this problem in distributive property compound interest geometry problem rounding to the nearest cent writing in decimal form direct variation height of a triangle 9th grade math solving equations by factoring answer factor divide decimal to fraction subtracting mixed numbers mean angles problems solve algebra equation arithmetic sequences simplifying trigonometric equation using identities comparing decimals laplace transform sets #help expanded forms pls. help!!

Please help.. this is a 5 part answer... PLEASE HELP

Suppose you are out on the town with friends and you all end up at a local casino.  The rules at one table are as follows:  You win $1 if the die comes up with an odd number and you lose $1 if it comes up even.

 

  • Suppose you get 22 odd numbers in your first 50 rolls.  How much have you won or lost?

 

  • On the second 50 rolls, your luck improves and you roll 24 odd numbers.  How much have you won or lost over 100 rolls?

 

  • You luck continues to improve, and you roll 74 odd numbers in you next 150 rolls.  How much have you won or lost over your total of 250 rolls?

 

  • How many odd numbers would you have to roll in the next 50 rolls to break even?  Is this likely? Explain.

 

  • What were the percentages of odd numbers after 50, 100, and 250 rolls?  Explain how this illustrates the law of large numbers, even while your losses increased.
asked May 18, 2012 in Word Problem Answers by anonymous




Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

3 Answers

Part 1

50 - 22 = 28

 22 * 1 + 28 * (-1) = 22 - 28 = -6 dollars

             odd                    even                       total #

               22                        28                             50

You lost 6 dollars.

 part 2

 50 - 24 = 26

 24 * 1 + 26 * (-1) = 24 - 26 = -2 dollars

            odd             even                  total #

             22                28                       50

             24                26                       50

            ------------------------------------------

sub-

total     46                54                       100

You lost 8 dollars.

 

answered May 18, 2012 by waltjhall Level 10 User (51,440 points)

part 3

150 - 74 = 76

74 * 1 + 76 * (-1) = 74 - 76 = -2 dollars

odd even total #

22 28 50

24 26 50

74 76 150

-----------------------------------------------------

sub-

total 120 140 250

You lost 20 dollars.

part 4

To break even means that the answer is equal to 0, or you have an equal

number of odd and even rolls.

odd even total #

22 28 50

24 26 50

74 76 150

30 20 50

-----------------------------------------------------

sub-

total 150 150 300

therefore to break even and toatl 150 in both of the odd and even columns, you need 30 odd rolls, and 20 even rolls.

 

answered May 18, 2012 by waltjhall Level 10 User (51,440 points)

part 5

The percentage at 50 rolls is 22/50 = 44%

The percentage at 100 rolls is 46/100 = 46%

The percentage at 250 rolls is 120/250 = 48%

From observation It looks as if you increase 2% with every 50 rolls. So to break even you need 50 more rolls. To win you need another 50 rolls.

 

answered May 18, 2012 by waltjhall Level 10 User (51,440 points)

Related questions

0 answers 30 views
13 answers 4,079 views
2 answers 30 views
0 answers 97 views
2 answers 70 views
70 views asked Mar 31, 2013 in Word Problem Answers by anonymous
2 answers 105 views
0 answers 58 views
58 views asked Nov 15, 2011 in Word Problem Answers by anonymous
1 answer 73 views
1 answer 105 views
1 answer 19 views
2 answers 921 views
0 answers 41 views
1 answer 254 views
0 answers 371 views
371 views asked Nov 11, 2011 in Statistics Answers by anonymous
0 answers 20 views
20 views asked Mar 11, 2013 in Word Problem Answers by anonymous
0 answers 24 views
0 answers 70 views
70 views asked Sep 10, 2012 in Word Problem Answers by anonymous
1 answer 18 views
1 answer 110 views
1 answer 36 views
1 answer 151 views
1 answer 33 views
0 answers 37 views
0 answers 58 views
58 views asked Jul 12, 2012 in Word Problem Answers by anonymous
0 answers 100 views
1 answer 16 views
16 views asked Oct 9, 2013 in Word Problem Answers by laverne
1 answer 33 views
1 answer 60 views
1 answer 23 views
1 answer 24 views
2 answers 28 views
28 views asked Oct 2, 2013 in Word Problem Answers by MeEatYourBooks
...