2.2. Common Graphs and Data Plots http://www.ck12.org
(d) There are 49 data points, so the 25thvalue, counted from either end, is the median. In this case, that is 26.- This data set is mound-shaped and skewed left.
- This data set has one obvious outlier. The remainder of the data is mound-shaped and fairly symmetric.
- This data appears to be bimodal.
- This data set appears mound-shaped and skewed right.
- mound-shaped and symmetric
- mound-shaped and symmetric
- bimodal
- uniform
- All four distributions have almost the same center, which appears to be around 52.
- The distribution is symmetric, so the center should be very close, if not equal to the mean. Standard deviation
is a measure of the typical distance away from the mean. Most of the data points in this distribution are
concentrated very close to the center. - (c) The bimodal shape means that most of the points are located at the extreme values making their distance
from the mean greater. - total amount of municipal waste: explanatory variable percentage of total waste recycled: response
variable In this situation, we would most likely be interested in showing if states that have more or less
total waste would have different recycling performance, i.e. does municipal wasteexplaina response in
the recycling rate. - 13, 386 ,000 tons. The data is indicated to be recorded in thousands of tons.