1. For the following exercise, complete the following:

a. Find the mean, median, and range for each of the two data sets.

b. Find the standard deviation using the rule of thumb for each of the data sets.

c. Compare the two sets and describe what you discover.

The following data sets shows the ages of the first seven presidents (President Washington through President Jackson) and the seven most recent presidents including President Obama. Age is given at time of inauguration.

First 7: 57 61 57 57 58 57 61

Second 7: 61 52 69 64 46 54 47

I need help on part C of the question. When it is asking me to compare the two data sets does it want me to calculate something? I am lost on this part.

What type of distribution is each set of scores? Skewed? Bimodal? Normal? How do the measures of central tendency compare? How about variability?

Does that help?

Use statistics to explain how the times for 6 grades compare to the timesfor 8 grades

On part C of the question, comparing the two data sets does not require any calculations. It simply means that you need to analyze and describe the differences or similarities between the two data sets.

To compare the two data sets of ages for the first seven presidents and the seven most recent presidents, you can consider factors such as the measures of central tendency (mean, median), measures of spread (range, standard deviation), or any patterns or trends you observe.

Here are a few things you could examine and describe when comparing the two data sets:

1. Measures of central tendency: Compare the mean and median ages of the two groups. Are they similar or different? What does this indicate about the average ages?
2. Measures of spread: Compare the ranges of the two data sets. Is one range wider than the other? What does this tell you about the spread or variability of ages within each group?
3. Outliers: Are there any outliers (extreme values) in either data set? If so, how do they affect the measures of central tendency or spread?
4. Patterns or trends: Do you notice any patterns or trends in the ages of the presidents? For example, are the ages of the first seven presidents clustered closely together, while the ages of the recent presidents have more variation?

Essentially, you want to observe and describe any noticeable differences or similarities between the two data sets, based on the information you have calculated in parts A and B, as well as any other relevant observations.