{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

plugin-Chapter 12a Students

plugin-Chapter 12a Students - Describing Distributions with...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
CHAPTER 12A Describing Distributions with Numbers
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
DESCRIBING DISTRIBUTIONS As we discussed in the previous chapter, we always describe a distribution with some sort of graphical display (e.g. histogram, stemplot). Describing the center and spread of a distribution using words is inadequate. Instead, we want to describe these topics using numbers.
Background image of page 2
MEDIAN The median is the midpoint of a distribution; this means that it is the number such that half the observations are smaller and the other half are larger. We use M as the symbol for the median. First, sort your observations in ascending order (from lowest to highest). If we have an odd number of observations, our value of M is given by the number in the very middle. If we have an even number of observations, our value of M is given by the average of the two middle numbers.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
EXAMPLE 12.1 Here are Hank Aaron’s home run counts for his 23 years in baseball.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}