Question: Students in a business statistics class were asked what grade they expected in the course and whether they worked on additional problems beyond those assigned

Students in a business statistics class were asked what grade they expected in the course and whether they worked on additional problems beyond those assigned by the instructor. The following table gives proportions of students in each of eight joint classifications.

a. Find the probability that a randomly chosen student from this class worked on additional problems.
b. Find the probability that a randomly chosen student from this class expects an A.
c. Find the probability that a randomly chosen student who worked on additional problems expects an A.
d. Find the probability that a randomly chosen student who expects an A worked on additional problems.
e. Find the probability that a randomly chosen student who worked on additional problems expects a grade below B.
f. Are "worked additional problems" and "expected grade" statistically independent?

Expected Grade Worked Problems Below C 0.02 0.08 es 0.12 0.06 0.12 No 0.13 0.210.26

Step by Step Solution

★★★★★

3.39 Rating (180 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Let Y Problems were worked N Problems not worked a P ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

488-M-S-P (2127).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Find the probability that a randomly chosen value will be less than 3. Answer Exercises 1-4 on page 729 for each probability distribution below. Distribution A Distribution B 12 34 56 2 3 4 56...

In a certain university the probability that a randomly chosen student is an athlete is 0.25. Students who are athletes are twice as likely to take a statistics course as those who are not athletes....

Students in a business statistics course performed a completely randomized design to test the strength of four brands of trash bags. One-pound weights were placed into a bag, one at a time, until the...

3.68 Students in a business statistics class were asked what grade they expected in the course and whether they worked on additional problems beyond those assigned by the instructor. The following...

In a survey of students in a business statistics class, students were asked what grade they expected in the course, and also whether they worked additional problems beyond those assigned by the...

\fThis is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. Editorial review has deemed that any suppressed content does...

GSB 420 Math Chapter 1-2 Calculus (Week1 In-Class Homework) Name : ______________________ I. Find X from the following equations (0.5 point each) 1. 3x = 90 2. Ln(ex) = 25 3. Monthly payment (X) of...

Chapter 06.01 Exercise Question 07 6.1.7 The following histogram is the distribution of the amount of time, in minutes, that some statistics students said they watched television the previous day....

Midterm Examination Questions - Spring 2016 1. The final examination grades of random samples of students from three different classes are shown below. Class A Class B Class C 92 91 85 85 85 93 96 90...

Please refer to Case #11 Tiny College Motor Pool) below. Please create an entity relationship diagram (ERD) using Crow's foot notation to indicate entities, relationships, connectives, and...

Adobe Systems Incorporated reported the following accounts and amounts (in millions) in its financial statements for the year ended November 30, 2013. Prepare the current assets section of its...

Write a report on the topic Performance Management System

When is a job order cost sheet set up? a. when raw materials are purchased b. when a job is completed c. when the product is shipped to the warehouse d. when a job starts into production

24. The most dismaying aspect of the performance of HealthSouths auditor,____________ Ernst & Young LLP, was to challenge a in cash.

The following data are for 30 observations involving two categorical variables, x and y. The categories for x are A, B, and C; the categories for y are 1 and 2. a. Develop a crosstabulation for the...

The Daytona 500 is a 500-mile automobile race held annually at the Daytona International Speedway in Daytona Beach, Florida. The following crosstabulation shows the automobile make by average speed...

Recently, management at Oak Tree Golf Course received a few complaints about the condition of the greens. Several players complained that the greens are too fast. Rather than react to the comments of...

Adapted AICPA Task-Based Simulation Youu are involved with the audit of Jelco Company for year 1 and have been asked to consider the confirmation reply results indicated below. For each confirmation...

6-21. You are deciding between two mutually exclusive investment opportunities. Both require the same initial investment of $10 million. Investment A will generate $2 million per year (starting at...

Seinfeld Inc. currently has $875,000 in accounts receivable, $675,500 in inventories and $875,000 in accounts payable on its balance sheet. The firm's production manager has determined that cost of...