**Measures of central tendency and range**

- Glencoe 11-4
- Mean, median, mode, and range
- Concept summary notes
- Examples 1-2 with CYP’s
- Assignment: P. 588-589 (5-15 All, 18)

**Measures of variation**

- Glencoe 11-5
- Upper and lower quartiles
- Example: Find the median, lower quartile, upper quartile and interquartile range of the following data set of scores: 18 20 23 20 23 27 24 23 29
- Outliers
- Assignment: P. 596-597 (6-9, 14-17, 28-33)

**Box-and-whisker plots**

- Glencoe 11-6
- Khan academy: constructing a box-and-whisker plot (descriptive statistics)
- Assignment: P. 603-604 (7, 9, 10-23 All)

**Histograms**

**What is a Histogram?**

A histogram is a bar graph that shows the frequency of data intervals. In other words, it is a bar graph that shows the data when it is broken up in to equal pieces.

**Important Elements of a Histogram**

Label each element on the example histogram:

**Analyze a Histogram**

The histogram shows the frequency distribution of the age of winners of the Nobel Prize in Medicine.

- According to the histogram, most winners are between what ages when they are awarded the Nobel Prize?
- How many people between the age 80-89 have won the Nobel Prize in Medicine?

**How do you make a Histogram?**

**Collect the data**- Create a frequency table.
**Create the Histogram.**Create a graph with an x-axis and y-axis and label them. List the intervals on the x-axis. On the y-axis, list the tally numbers. Each interval is represented by a bar. The height of the bar tells how many of your data points fell in a given interval. Lastly give the histogram a title.