2nd Edition

ISBN: 9781260189346

Author: sobecki, David

Publisher: MCGRAW-HILL HIGHER EDUCATION

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Textbook Question

Chapter 2, Problem 27LSR

Carefully read through the list of terminology we’ve used in Unit 2. Consider circling the terms you aren’t familiar with and looking them up. Then test your understanding by using the list to fill in the appropriate blank in each sentence.

A = P ( 1 + r ) t A = P + P r t

area

change

compound inequality

constant

conversion factor

dependent variable

dimensional analysis

empirical rule

equation

equivalent

error

estimation

evaluate

expected value

expression

fair game

formula

future value

greater than

greater than or equal to

independent variable

inequality

input

interest rate

less than

less than or equal to

mean

median

mode

normally distributed

output

percent error

principal

range

rate

relative change

standard deviation

time

unit rate

variable

volume

weighted scale

A phrase used to describe ≤ is _______________.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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Chapter 2, Problem 26LSR

Chapter 2, Problem 28LSR

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8.67 Free recall memory strategy. Psychologists who study ①memory often use a measure of "free recall" (e.g., the RECALL number of correctly recalled items in a list of to-be- remembered items). The strategy used to memorize the list-for example, category clustering-is often just as important. Researchers at Central Michigan University developed an algorithm for computing measures of cat- egory clustering in Advances in Cognitive Psychology (Oct. 2012). One measure, called ratio of repetition, was recorded for a sample of 8 participants in a memory study. These ratios are listed in the table. Test the theory that the average ratio of repetition for all participants in a similar memory study differs from .5. Select an appropriate Type I error rate for your test. .25 .43 .57 .38 .38 .60 .47 .30 Source: Senkova, O., & Otani, H. "Category clustering calculator for free recall." Advances in Cognitive Psychology, Vol. 8, No. 4, Oct. 2012 (Table 3).

Chapter 2 Solutions

Pathways to Math Literacy

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Solution Summary: The author explains that a phrase used to describe le is not more than.

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