What is the three-fourths rules

Reference no: EM131238553

Assignment 1 -

A small portion of every assignment will be completed using SPSS (version 21) that is available in every computer lab at Marymount California University. You will need to download the associated .SAV file (SPSS data file) that has the same assignment number.

Question 1. Graph the Frequency Distribution below, using a Frequency Polygon. Don't forget to label your x- and y-axis.

X f

4 3

3 5

2 4

1 2

Question 2. What is the Three-Fourths Rules (or Three-Quarters Rule)?

How does the Three-Fourths Rule (or Three-Quarters Rule) help prevent misrepresentation of data?

Question 3. Graph the following grouped frequency distribution. Don't forget to label your x- and y-axis.

X f

100-90 1

80-89 2

70-79 3

60-69 4

50-59 3

40-49 2

30-39 1

Using the SPSS .SAV file associated with this assignment, answer the following questions using the statistical program of SPSS.

Question 4. For the variable of Grades, first find the Frequency Distribution and construct it below in your answer.

Then, construct the Frequency Polygon using the Frequency Distribution for the variable Grades. Don't forget to label your graph.

Question 5. For the variable of Attendance, first find the Frequency Distribution and construct it below in your answer.

Then, construct a Bar Graph using the Frequency Distribution for the variable Attendance. Don't forget to label your graph.

Assignment 2 -

Question 1. What is Range? Look at the equation in your book and describe in your own words what the Range tells us about the distribution of scores.

Question 2. What is the symbol for Sample Mean?

Question 2b. What is the symbol for Population Mean?

Question 3. Use the following Frequency Distribution to answer the questions below.

X f

10 1

5 2

3a. Solve for Average Deviation (AD).

3b. Solve for Variance (s²).

3c. Solve for Standard Deviation (s).

Question 4.Create z-Scores for the following scores (X).

Assignment 3 -

Question 1. If you rolled a six-sided die, what is the probability of getting a 6?

Question 2. What is the probability of rolling the same die and getting a 5 or 1?

Question 3. Using the same six-sided die, what's the probability of getting a 2 and a 3?

Question 4. In a raffle, 100 tickets were collected in all. There are four grand prizes total. If three of the tickets were already selected (and you did not win for those three), what is the probability of you winning given that three tickets were selected already? (Note: tickets were note replaced after each draw)

Question 5. A student is flipping two coins (or one coin twice, each time). How many ways can we get even Tails ("hits")? Create a Frequency Table after determining the combinations.

Attachment:- Assignment-1 Data.rar

Reference no: EM131238553

Questions Cloud

Compute and interpret the expected value : Suppose a life insurance company sells a $170,000 one-year term life insurance policy to a 22-year old female for $340. The probability that the female survives the year is .999612. Compute and interpret the expected value of this police to the in..

Which of the cases have entropy generation and which do not : To maximize the mass flow rate of air through a given nozzle, which properties should I try to change and in which direction, higher or lower?

Analysis of the topic with regard to community policing : The student should be creative in choosing a topic that peaks their interest and can be sufficiently supported with research, data, and substantiated theory or application and allows them to illustrate their critical thinking and writing skills de..

Mean weight of passengers in commercial boats : The United States Coast Guard assumes the mean weight of passengers in commercial boats is 185 pounds. The previous value was lower, but was raised after a tragic boating accident.

What is the three-fourths rules : What is the Three-Fourths Rules (or Three-Quarters Rule)? How does the Three-Fourths Rule (or Three-Quarters Rule) help prevent misrepresentation of data

Which temperature does a thermometer or thermocouple measure : Which temperature does a thermometer or thermocouple measure? Would you ever need to correct that?

Is there a limit for the mach number for it to work this way : A diffuser is a divergent nozzle used to reduce a flow velocity. Is there a limit for the Mach number for it to work this way?

Researcher developed a questionnaire that measures : Suppose a researcher developed a questionnaire that measures how liberal or conservative one's attitudes are. Low scores indicate that the person has liberal attitudes, whereas high scores indicate conservatism. The following hypothetical data are..

What are the isentropic stagnation pressure and temperature : Steam leaves a nozzle with a pressure of 500 kPa, a temperature of 350?C, and a velocity of 250 m/s. What are the isentropic stagnation pressure and temperature?

User Account

All Pages