Design and data analisis in Psychology I

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Presentation transcript:

Design and data analisis in Psychology I Chapter 3

Practice 1 Complete the following table, knowing that the modes are 6 and 9; and that the values 8 and 12 were observed the same times:

Practice 2 With these data, calculate the mean, the median and the mode:

Practice 3 In the following distribution, calculate the mean and the mode.

Practice 4 In a study related to traffic accident caused during a weekend in Andalusia, the following results were registered: Indicate the sample size and calculate the mode, the mean and the median.

Practice 5 Calculate the following percentiles: D1 , C15, Q1 and P81

Practice 6 With the following data table, calculate decile 2 and quartile 3

Practice 7 In the following data set: - Add one data, without changes both in the median and the mean. - Add one data which makes that the mean and the median match value 3.

Practice 8 Calculate the mean from a data set whose median is X19.5 and that adjusts to the following table:

Practice 9 Calculate the median from the following data set:

Practice 10 Calculate the median from the following set of 35 data, knowing that the distribution is bimodal; and complete the table: