Research Methods for the Behavioral Sciences (MindTap Course List)
5th Edition
ISBN: 9781305104136
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Wadsworth Publishing
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Chapter 13, Problem 3E
What is the purpose for determining a set of behavior categories and creating a list of specific behaviors to define each category before making behavioral observations.
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30. An individual who has automobile insurance from a certain company is randomly selected. Let Y be the num- ber of moving violations for which the individual was cited during the last 3 years. The pmf of Y isy | 1 2 4 8 16p(y) | .05 .10 .35 .40 .10
a.Compute E(Y).b. Suppose an individual with Y violations incurs a surcharge of $100Y^2. Calculate the expected amount of the surcharge.
24. An insurance company offers its policyholders a num- ber of different premium payment options. For a ran- domly selected policyholder, let X = the number of months between successive payments. The cdf of X is as follows:
F(x)=0.00 : x < 10.30 : 1≤x<30.40 : 3≤ x < 40.45 : 4≤ x <60.60 : 6≤ x < 121.00 : 12≤ x
a. What is the pmf of X?b. Using just the cdf, compute P(3≤ X ≤6) and P(4≤ X).
Chapter 13 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 13.1 - Describe the purpose of the descriptive research...Ch. 13.2 - Describe the two general problems (observer...Ch. 13.2 - Describe the three techniques used to quantify...Ch. 13.2 - Prob. 4LOCh. 13.2 - Describe the general characteristics of the...Ch. 13.3 - Describe the general characteristics of the survey...Ch. 13.3 - Define open-ended, restricted, and rating-scale...Ch. 13.3 - Describe the four methods for administering a...Ch. 13.4 - Describe the general characteristics of the case...Ch. 13 - In addition to the key words, you should also be...
Ch. 13 - In this chapter, we introduced the observational...Ch. 13 - What is the purpose for determining a set of...Ch. 13 - Describe how time, event, or individual sampling...Ch. 13 - A researcher uses content analysis to determine...Ch. 13 - Explain the distinction between naturalistic...Ch. 13 - What are the advantages and disadvantages of...Ch. 13 - What is the general advantage of using the survey...Ch. 13 - Prob. 9ECh. 13 - Define the three types of survey questions (open...Ch. 13 - Prob. 11ECh. 13 - Two studies (Hughes, Cutting, Hughes et al.,...Ch. 13 - Most research in the behavioral sciences involves...
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- Please provide the solution for the attached image in detailed.arrow_forward20 km, because GISS Worksheet 10 Jesse runs a small business selling and delivering mealie meal to the spaza shops. He charges a fixed rate of R80, 00 for delivery and then R15, 50 for each packet of mealle meal he delivers. The table below helps him to calculate what to charge his customers. 10 20 30 40 50 Packets of mealie meal (m) Total costs in Rands 80 235 390 545 700 855 (c) 10.1. Define the following terms: 10.1.1. Independent Variables 10.1.2. Dependent Variables 10.2. 10.3. 10.4. 10.5. Determine the independent and dependent variables. Are the variables in this scenario discrete or continuous values? Explain What shape do you expect the graph to be? Why? Draw a graph on the graph provided to represent the information in the table above. TOTAL COST OF PACKETS OF MEALIE MEAL 900 800 700 600 COST (R) 500 400 300 200 100 0 10 20 30 40 60 NUMBER OF PACKETS OF MEALIE MEALarrow_forwardLet X be a random variable with support SX = {−3, 0.5, 3, −2.5, 3.5}. Part ofits probability mass function (PMF) is given bypX(−3) = 0.15, pX(−2.5) = 0.3, pX(3) = 0.2, pX(3.5) = 0.15.(a) Find pX(0.5).(b) Find the cumulative distribution function (CDF), FX(x), of X.1(c) Sketch the graph of FX(x).arrow_forward
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