Exam 12: Descriptive Statistics Activities and Resources

Given a mean of 15 and a median of 22 what can we say about the distribution of scores?

Betsy is reporting the results of standardized testing to parents of her class students. Natal received a t score of 80. -What is an accurate statement that Betsy might make to Natal's parents.

Peter, a sixth-grade mathematics teacher, recently administered an exam. He wants to report a measure of central tendency but he doesn't know what to do with the fact that two students have much lower scores than anyone else. What is the best measure of central tendency for Peter to report?

In a distribution with a mean of 28 and a standard deviation of 2 almost all the scores fall between

Given the following distribution of test scores: 88,90,78,82,94,86,80,92,92,96,98. The score that best represents the mode of the distribution is:

Kari's research study measured the effects of cooperative learning on learners' ability to solve complex problems. After scoring the problems and entering the data, her advisor told her she must have another researcher score the problems. Interestingly, the scores she gave the participants did not match the scores that the other researcher gave. Kari's scoring problem is indicative of a problem with

The range of the following distribution 1,2,4,4,5,5,5,6,6,8,9 is:

George collected achievement score data for each child from a middle school. He has their gender, age, teacher and score on the achievement measure as his data fields. -George also needs to calculate the measure of variation for achievement score. Which measure should he use?

Patricia wants to report the most common age of the members of her Red Hat group. Which measure should she report?

In a distribution with a mean of 50 and a standard deviation of 5, a T score of 30 equals a score of

The measure that represents the difference between the highest and lowest score is the

Given the following set of scores 6,7,5,12,11,9,9,7,6,10,6; The score that best represents the mode is:

The mode of the following distribution is 1,2,4,4,5,5,5,6,6,8,9 is:

Griffin conducted a poll of his eighth grade class. He would like to determine how many would rather go to an amusement park versus a water park for the class trip. Which of the following is Griffin most likely to report to his peers?

Logan accessed an existing database to answer his research question regarding the role of identification of a learning disability and odds of going to a private school. The variables of interest include category of disability, type of school, achievement scores in the first, third, and sixth grade, parents SES. -Logan needs to report the correlations among first, third, and sixth grade achievement scores. Which is the most likely measure of relationship appropriate for him to use?

The most commonly used measure of variability used with interval and ratio data is the