Practice Problems Ch 1 - Practice Problems Ch. 1: 12, 15,...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
12. Explain and give an example for each of the following types of variables: (a) equal- interval, (b) rank-order, (c) nominal, (d) ratio scale, (e) continuous. a) Equal-Interval: Counting of years because different cultures have different starting points b) Rank-Order: Standings in Professional Sports c) Nominal : Political party people vote for d) Ratio Scale: Weight of People and Length of an object e) Continuous: Weight of People and Time-Lengths 15. Following are the speeds of 40 cars clocked by radar on a particular road in a 35-mph zone on a particular afternoon: 30, 36, 42, 36, 30, 52, 36, 34, 36, 33, 30, 32, 35, 32, 37, 34, 36, 31, 35, 20, 24, 46, 23, 31, 32, 45, 34, 37, 28, 40, 34, 38, 40, 52, 31, 33, 15, 27, 36, 40 Make (a) a frequency table and (b) a histogram. Then (c) describe the general shape of the distribution a) A frequency table Value Frequency 15 1 16 0 17 0 18 0 19 0 20 1 21 0 22 0 23 1 24 1 25 0 26 0 27 1 28 1 29 0 30 3 31 3 32 3 33 2 34 4 35 2 36 6 37 2 38 1 39 0 40 3 41 0 42 1 43 0 44 0 45 1 46 1 47 0 48 0
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
49 0 50 0 51 0 52 2 b) A histogram c) Describe the general shape of the distribution The general shape is approximately bell shaped. Notice how we can draw a bell shaped curve over the histogram like so and notice how the shape of the histogram fits that curve. 19. Give an example of something having these distribution shapes: (a) bimodal, (b)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/19/2012 for the course PSY 315 315 taught by Professor Tiffanycron during the Spring '11 term at University of Phoenix.

Page1 / 4

Practice Problems Ch 1 - Practice Problems Ch. 1: 12, 15,...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online