Exam 1: Introduction and Mathematical Preliminaries

What is the probability of drawing a card with a number from a standard deck of 52 cards? (Do not consider an ace a number card).

The real limits of the number 20 are:

An experiment tested whether the context of the learning environment was important in memory recall.Sixteen people learned a list of 40 unrelated words either inside a room or outside of a house on a patio.Later they were asked to recall the words in either the same environment they learned the list of words in or the alternative environment.The number of correctly recalled words was measured. What level of measurement is the independent variable?

Sally's dog just received second place for in it obedience class.This is considered a _____scale of measurement.

What is measurement?

Given the following data for X and Y variables,calculate Ó(X +Y)

Inferential statistics uses population parameters to estimate sample statistics.

In a study of the effects of exercise on health,the independent variable is _____ and the dependent variable is _____.

When researchers infer something about the general population from their sample they are using ____________________.

Describe the relationship between random sampling and representative samples.

Distinguish between descriptive and inferential statistics.

Parameters are statistical indices based on data from:

_____ measures have the property that numerically equal distances on the scale represent equal distances on the dimension being measured.

The entire population is considered a _____ but a sample of the population is a _____.

Numerical indices based on data from a sample are referred to as statistics.

Dr.Qui is studying the influence gender has on the type of car a person drives.Both of these variables are considered a ____________________ scale of measurement.

The upper real limit of the number 17.5 is

The number of people in your family is considered a _____ variable.

Scientists use representative samples to obtain random samples.

The determination of whether a variable is measured on a(n)_____ level is usually a straightforward matter in the behavioral sciences.