2. 1-variable statistical analysis

dujiang — 2014-10-30 15:43:36 UTC

mean=45664

standard deviation=46782

min=2798

Q1=13981

Med=35636

Q3=56031

max=196896

3. pie chart

dujiang — 2014-10-30 16:03:08 UTC

3. line graph

dujiang — 2014-10-30 16:03:44 UTC

1. database

dujiang — 2014-10-30 16:10:00 UTC

We choose the number of marriage of all states in US in 2000 as our database.

3. histogram

dujiang — 2014-10-30 16:10:24 UTC

3. plot box

dujiang — 2014-10-30 16:11:45 UTC

4.

dujiang — 2014-10-30 22:17:52 UTC

The mean of the data is 45664 and the median is 35636. These two numbers tell us that less than half of the state’s number is bigger than the average. It also means that most of the states have a relatively small amount of marriage number, and some big states have a large number of marriage. The five number tells us that the maximum and the minimum varies hugely, and most of the numbers gather in the approximate range of 10000 to 70000. We choose this data set because it have 51 datas, it meets the require of at least 50 datas. Moreover, we find the set interesting because it shows the different situations between different states and we can have a better understanding of America by analyzing this set of data.

There are peaks, gaps, outliers, and clusters in all of our graphs. Each one of our graphs show all these things. They just display them in different ways. The graphs show that our data is skewed to the right. The data is mostly all together in clusters but then we have an outlier. This shows that our standard deviation is correct because of the range of the numbers. The graphs just show the data displayed in different ways.

In our data set there is no mode present as there are no repeating numbers in our data list. The range of our data set is 194,098. From the data the minimum and maximum were expected, but nothing came off as too surprising. The data set that best represents our data would be the histogram or box plot as these two are the easiest to read.