Question

Seeing if i did these right

1. What is the goal of central tendency?

The goal of central tendency is to find the “middle” of a distribution. It identifies one single measure that best describes a set of data

Find the mean, median, and mode for the following sample of scores: 5, 4, 5, 2, 7, 1, 3, 5

Mean________4_______       Median_______4.5________ Mode_______5________

2. Find the mean, median, and mode for the following sample of scores: 3, 5, 7,, 3, 9, 8, 3, 7, 5

Mean_______5.56________ Median_______5________    Mode_______3________

3. Find the mean, median, and mode for the scores in the following frequency table.

X         f

6          1

5          2                      Mean­____2.79____   Median______2.5_____ Mode_________1______

4          2

3          2

2          2

1          5

4. Find the mean, median, and mode for the scores in the following frequency table.

X         f

8          1

7          1

6          2                      Mean______5.08____ Median___5_________ Mode______5______

5          5

4          2

3          2

5. Explain why the median is often preferred to the mean as a measure of central tendency for a skewed distribution?

With a skewed distribution, the extreme scores in the tail can influence the mean in the direction of the skew so it is better to use the median.

A researcher conducts a study comparing two

Answer 1

Yes, all of your answers are perfect and correct.