Mathematics
Math : Counting and Probability

Question Description

Can you help me understand this Algebra question?

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Graded Assignment Name: MTH302B: Algebra II | Unit 4 | Lesson 13: Unit Test Date: Graded Assignment Unit Test, Part 2: Counting and Probability Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit. (10 points) 1. A container holds 15 pennies, 8 nickels, and 10 dimes. You will randomly select two coins without replacement. Score a. Fill in the probabilities on each branch of the tree diagram. b. Use the tree diagram to answer the following: How many ways can you select the coins? How many ways can you select exactly 1 nickel? What is the probability that you select 2 pennies? What is the probability that you select a dime and then a penny? © 2010 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Page 1 of 3 Graded Assignment MTH302B: Algebra II | Unit 4 | Lesson 13: Unit Test Answer: © 2010 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Page 2 of 3 Graded Assignment MTH302B: Algebra II | Unit 4 | Lesson 13: Unit Test (8 points) 2. The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly selected. Score a. Find the probability of selecting a number less than 10 or a number written in blue. Show your work. b. Find the probability of selecting a number written in red or a multiple of 20. Show your work. Answer: (5 points) 3. There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections. Show your work. Score Answer: Your Score © 2010 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. ___ of 23 Page 3 of 3 ...
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David S (20)
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