{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Psychology #12

Psychology #12 - Psychology Lecture 12 What does variance...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Psychology Lecture # 12 – October 16, 2007 What does variance mean? How do you calculate measures of central tendency? How do statistics help us understand data? Christmas Exam- Monday, December 10, 2007- 9:00 a.m Movie Violence- Black and Bevan (1992)- Aggression scale to movie-goers before or after violent or nonviolent movie –after the violent film people reporte feeling more aggressive, whereas the nonviolent movie-goers experienced no increase or decrease North America - percentage of households with 1 or more tvs: 99% - average number of TVs per house: 2.24 - average daily viewing: 6 hours and 47 mins - percentage of people who watch whole eating diner: 66 - collection of numbers is called the distribution- ex. a collection of marks for a class - convert to a frequency distribution- look at the frequency that each number occurs- convert this to a graph- X= marks, Y= frequency Statistics - simplify with a few numbers(statistics) - Mean (X); M-----(draw a line over the X - Add up numbers an divide by N (the number or students)
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
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

Psychology #12 - Psychology Lecture 12 What does variance...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online