Services
Discover
Homeschooling
Ask a Question
Log in
Sign up
Filters
Done
Question type:
Essay
Multiple Choice
Short Answer
True False
Matching
Topic
Mathematics
Study Set
Statistics for the Behavioral Sciences
Quiz 3: Summarizing Data: Central Tendency
Path 4
Access For Free
Share
All types
Filters
Study Flashcards
Practice Exam
Learn
Question 61
True/False
A skewed distribution tends to pull the median,but not the mean,toward outliers in the data.
Question 62
True/False
The mode is always the middle score in a distribution.
Question 63
True/False
The weighted mean is used to determine the mean for samples with unequal sample sizes.
Question 64
True/False
A researcher measures the following scores on an assessment: 2,3,7,3,5,6,and 9.In this example,the mean is smaller than the median.
Question 65
True/False
A weighted mean should be used when the "weights" are not equal.
Question 66
True/False
Adding a new score to a set of scores will change the mean,even when the score that is added is equal to the mean.
Question 67
True/False
The mode and the median are always the same value.
Question 68
True/False
A researcher measures the depth (in fathoms)of different points in the ocean affected most by pollution.Based on the scale of measurement for these data,describing the mean depth is appropriate.
Question 69
True/False
A weighted mean weighs the mean by the sample size for each sample in the formula.
Question 70
True/False
A weighted mean is most appropriate to describe the mean for two or more samples with equal sample sizes.
Question 71
True/False
Some,but not all,scores in a distribution are included in the calculation of a mean.
Question 72
True/False
The median cannot be at the center of a distribution if the mean is also at the center of the distribution.
Question 73
True/False
The mean,median,and mode are all the same value in a normal distribution.
Question 74
True/False
It is appropriate to use the mode with the mean to describe data that are skewed.
Question 75
True/False
The mode can be used to describe modal distributions.
Question 76
True/False
The sum of the squared differences of scores from their mean is zero.
Question 77
True/False
The sum of the differences of scores from their mean is zero.
Question 78
True/False
A researcher measures the following scores on a quiz: 0,3,7,3,5,4,and 6.In this example,the mean is larger than the median.
Question 79
True/False
A researcher records the distance (in feet)traveled in a burning building by firefighters during a rescue attempt.Based on the scale of measurement for these data,describing the mean distance traveled is appropriate.