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Using the frequency distribution table below, what is the proportion of individuals that scored a 4? X         f 6          4 5          3 4          7 3          2 2          2 1          2

In an experiment comparing two methods for teaching social skill training to children with autism, the independent variable is ____ and the dependent variable is ____.​

What is the mode for the following sample of n = 11 scores? Scores: 1, 2, 2, 2, 3, 3, 4, 5, 6, 6, 7

A researcher surveys a sample of n = 200 college students and asks each person to identify their favorite movie. Which kind of graph should be used to present these results?

A set of 5 scores has SS = 20. If the scores are from a sample, the sample variance is ____. If the scores comprise a population, the population variance is ____.

What is the percentile rank for a score of 4 in the frequency distribution table below? X      f ​ 6      4 ​ 5      5 ​ 4      1 ​ 3      3 ​ 2      6 ​ 1      1 ​

Which of the following would be an example of a discrete variable?

On an exam with a mean of µ = 70, a person scores X = 60. Which of the following values for the standard deviation would position this person highest within the class?

A researcher uses an anonymous survey to investigate the study habits of American college students. Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class. For this study, the average of 4.1 hours is an example of a ____.​

Exhibit 3-4The following is the frequency distribution for the speeds of a sample of automobiles traveling on an interstate highway.   Speed (mph) Frequency   50−54   2   55−59   4   60−64   5   65−69 10   70−74   9   75−79   5     35 ​ ​   Refer to Exhibit 3-4. The variance is _____.