Terms : Hide Images
| 7272325733 | Types of graphs (5) | line, scatter, bar, histogram, pie | 0 | |
| 7272326152 | Line | changes over time (years, minutes, etc) | 1 | |
| 7272326153 | Scatter | correlation between two variables best fit line: half above, half below perfect positive correlation = 1 perfect negative correlation = -1 no correlation = 0 closer to 0, weaker it is | 2 | |
| 7272326556 | Bar | comparing groups different from histogram: -space in between bars -numbers DV, words IV | 3 | |
| 7272326557 | Histogram | distribution data different from bar graph: -bars touch -IV and DV numbers | 4 | |
| 7272326558 | Pie | parts of a whole percentage | 5 | |
| 7272378089 | Parameter vs sample | everything vs a part of everything | 6 | |
| 7272359004 | N meaning | sample size | 7 | |
| 7272362382 | x(bar) meaning | average, mean | 8 | |
| 7272362383 | M meaning | median, midpoint | 9 | |
| 7272365911 | range meaning | difference between extremes | 10 | |
| 7272366869 | degrees of freedom | n-1 | 11 | |
| 7272368929 | example that explains degrees of freedom | If you're given 8 numbers in an equation and are allowed to choose those 8 #'s, all numbers except the last can be anything you wish. This is because there's a specified result to the equation and the last # decides whether you can achieve that result or not. | 12 | |
| 7272381906 | normal distribution | type of standard deviation that looks like a bell shaped curve | 13 | |
| 7272381526 | standard deviation | a measure of variation, i.e. how spread out the numbers are the closer the data appears on a graph the smaller the st. dev. the farther apart, the larger the st. dev | 14 | |
| 7272393005 | standard deviation formula | (image) |  | 15 |
| 7272399930 | importance of standard error | shows precision of data as well as accuracy more trials = smaller standard error | 16 | |
| 7272406939 | St. error formula | (image) |  | 17 |
| 7272412913 | if SEM bars overlap and the mean is within it means | no difference between two groups | 18 | |
| 7272416447 | if SEM bars overlap and the mean is NOT within it means | no similarity or difference two groups | 19 | |
| 7272416448 | if SEM bars do NOT overlap | difference between two groups | 20 |
