QuickHelper

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Teaching Since: May 2017
Last Sign in: 352 Weeks Ago, 5 Days Ago
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  • MBA, PHD
    Phoniex
    Jul-2007 - Jun-2012

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    ChevronTexaco Corporation
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Category > Engineering Posted 18 Aug 2017 My Price 10.00

math test help

need some help

Name:

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.

Total score: ____ of 23 points

(Score for Question 1: ___ of 10 points)

1.     A container holds 15 pennies, 8 nickels, and 10 dimes. You will randomly select two coins without replacement.

(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 way 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?

Answer:

Title: Tree diagram - Description: Tree diagram. First event is titled select first coin and the branches extend to penny, nickel, and dime. Each of these branches has a missing probability. Second event is titled select second coin. Three branches extend from each of the previous branches, and each of these sets of branches extend to penny, nickel, and dime. Each of these branches has a missing probability.

(Score for Question 2: ___ of 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.

(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:


 

(Score for Question 3: ___ of 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.

 

Answer:

Answers

QuickHelper
(10)
Status NEW Posted 18 Aug 2017 04:08 PM My Price 10.00

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