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Author Archives: Anonymous

For the scores shown in the following stem and leaf display,…

For the scores shown in the following stem and leaf display, what is the highest score in the distribution?        Stem and Leaf Display               4               159               3               098               2               89103               1               39 ​

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For the scores shown in the following stem and leaf display,…

For the scores shown in the following stem and leaf display, how many individuals had scores in the 20s?        Stem and Leaf Display               4               674               3               09817               2               891652               1               39

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A population of N = 5 scores has a mean of µ = 8. If one sco…

A population of N = 5 scores has a mean of µ = 8. If one score with a value of X = 4 is removed from the population, what is the value for the new mean?

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A set of scores ranges from X = 13 to X = 73. If the scores…

A set of scores ranges from X = 13 to X = 73. If the scores were put in a grouped frequency distribution table with an interval width of 10 points, the top interval would be 73-82.

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For the following frequency distribution of quiz scores, how…

For the following frequency distribution of quiz scores, how many individuals took the quiz? X         f 5          6 4          5 3          5 2          3 1          2

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Consider that a sample of individuals each report how many s…

Consider that a sample of individuals each report how many siblings they have, and this data is then put into a grouped frequency distribution table. This grouped frequency distribution table will not provide enough information to obtain a complete listing of the original responses of individuals.

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A researcher surveys a sample of n = 10 adults and asks them…

A researcher surveys a sample of n = 10 adults and asks them to indicate their favorite day of the week. If the data were organized in a frequency distribution table, what would be included in the first column?

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One item on a questionnaire asks students how many times per…

One item on a questionnaire asks students how many times per day in a typical week they make a call on their cell phones. The responses for a sample of n = 12 students are summarized in the frequency distribution. What is the best measure of central tendency for these data? X f ​ 5+ 5 ​ 4 4 ​ 3 1 ​ 2 0 ​ 1 2 ​ 0 0 ​

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To determine the size of a difference between two individual…

To determine the size of a difference between two individuals on a measured variable, a researcher must use either an interval or a ratio scale of measurement.

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A researcher surveys a sample of n = 20 college students and…

A researcher surveys a sample of n = 20 college students and asks each person to identify their favorite movie. If the data were organized in a frequency distribution table, what would be included in the last column?

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