A small town employs 34 salaried, nonunion employees. Each employee receives an annual salary increase of between $500 and $2,000 based on a performance review by the mayor’s staff. Some employees are members of the mayor’s political party, and the rest are not.
Students at the local high school form two lists, A and B, one for the raises granted to employees who are in the mayor’s party, and the other for raises granted to employees who are not. They want to display a graph (or graphs) of the salary increases in the student newspaper that readers can use to judge whether the two groups of employees have been treated in a reasonably equitable manner.
Which of the following displays is least likely to be useful to readers for this purpose?
a. Back-to-back stemplots of A and B
b. Scatterplot of B versus A
c. Parallel boxplots of A and B
d. Histogram of A and B that are drawn to the same scale
e. Dotplots of A and B that are drawn to the same scale.
A small town employs 34 salaried, nonunion employees. Each employee receives an annual salary increase of between $500 and $2,000 based on a performance review by the mayor’s staff. Some employees are members of the mayor’s political party, and the rest are not.
Students at the local high school form two lists, A and B, one for the raises granted to employees who are in the mayor’s party, and the other for raises granted to employees who are not. They want to display a graph (or graphs) of the salary increases in the student newspaper that readers can use to judge whether the two groups of employees have been treated in a reasonably equitable manner.
Which of the following displays is least likely to be useful to readers for this purpose?
a. Back-to-back stemplots of A and B
b. Scatterplot of B versus A
c. Parallel boxplots of A and B
d. Histogram of A and B that are drawn to the same scale
e. Dotplots of A and B that are drawn to the same scale.
1. Simulate rolling two dice. Roll the dice 10 times.2. Cereal boxes contain three different sports cards. 20%
of the cards are Tiger Woods, 30% are David Beckham and the rest are Serena Williams. Simulate opening a box of cereal to find out what type of sports card was inside.
3. Using the cereal box example, find out how many boxes of cereal you would have to open to get one card of each type.
4. Repeat example 3, 20 times and find the average number of boxes of cereal you would have to open to find all three sports cards.
1. Identify the component to be repeated.2. Explain how you will model the component’s
outcome.3. Explain how you will combine the components to
model a trial.4. State clearly what the response variable is. 5. Run several trials.6. Collect and summarize the results of all the trials.7. State your conclusion.
Example: You take a quiz with 5 multiple choice questions. After you studied, you estimated that you would have about a 75% chance of getting any individual question right. What are your chances of getting them all right? Use at least 20 trials.
Plan: State the problem. Identify the important parts of your simulation.
Components: Identify the components.Outcomes: State how you will model each component using
equally likely random digits.Trial: Explain how you will combine the components to
simulate a trial.Response Variable: Define your response variable.Mechanics: Run at least 20 trials.Analyze: Summarize the results across all trials to answer
