PSY 202 Homework 1 KEY.pdf - This material may not be distributed without the explicit consent from its author Dr Nick Prins Homework 1 PSY 202 Prins

PSY 202 Homework 1 KEY.pdf - This material may not be...

This preview shows page 1 - 3 out of 6 pages.

Homework 1. PSY 202 Prins. 69/69 = 100% Name: Nick Prins Write your final answers on the lines. Show your computations. 1. For the following variables determine the level of measurement and whether the variable is discrete or continuous 1 pt each for total of 8 The time it takes a rat to run a maze RATIO, CONTINUOUS Rank in the Army RANK-ORDER, DISCRETE Number of students enrolled in PSY 202 RATIO, DISCRETE Race (as in Asian, etc.) NOMINAL, DISCRETE (continuous is defendable) 2. How would the following mathematical operation be expressed in summation notation? "Add two to each score, square the resulting values, then add these squared values." 2 points a. X + 2 2 b. ( X + 2) 2 c. (X + 2) 2 d. X 2 + 2 __ C __ 3. What about this one: “Divide each score by 3, sum the resulting numbers, thensquare the sum”? 2 points a. (∑X)2 / 3 b. (∑X/3)2c. ∑(X/3)2d. ∑X/32__B__ 4. Given the following data:XYX2XYY2XY2X – M(X – M)2 3 5 9 (3x5) 15 25 (3x25) 75 -0.4 0.16 4 1 16 4 1 4 0.6 0.36 5 8 25 40 64 320 1.6 2.56 3 9 9 27 81 243 -0.4 0.16 2 6 4 12 36 72 -1.4 1.96 17 29 63 98 207 714 0 5.2 This material may not be distributed without the explicit consent from its author, Dr. Nick Prins
Image of page 1
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 6 pages?

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors