 | Term | Definition |
| |
bar graph |
to compare different categories of data |
| |
circle graph |
to show data as parts of a whole set of data |
| |
line graph |
to show the change in data over time |
| |
line plot |
frequency shown by placing an X above |
| |
mean |
calculated by taking the sum of all the data & dividing it by the # of data |
| |
median |
you order the data points in order, then find the one in the middle |
| |
mode |
the value that occurs most frequently |
| |
histograms |
a bar graph in which the data is orginized into equal intervals or measurment class |
| |
frequency |
the number of values within each class |
| |
measures of variation |
they describe the spread od the values in a set of data |
| |
quartiles |
they seperate the data into four equal subsets, each containing one fourth of the data |
| |
interquartile range |
the difference between the upper and lower quartiles |
| |
five-number summary |
consists of the minimum, maximum, Q1, median, Q3 |
| |
probabilty |
the likehood of an event happening |
| |
odds |
a ratio that conpares the # of ways an event can occur (successes) to the # of ways it cannot occur (failures) |
| |
odds against |
a ratio of failure to successes |
| |
fundamental counting principle |
if an event M can occur in M ways and is followed by an event N that can occur in N ways, then the event M followed by the event N can occur in MN ways |
| |
permutations |
an arragement or listing in which an order or placement is important |
| |
combinations |
a listing in which order is NOT important |
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simple event |
single event |
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compound event |
consists of two or more simple events |
| |
independent events |
if the outcome of one simple event does not affect the outcome of another |
| |
dependent events |
when the outcome of one event affects the outcome of another event |
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mutually exsclusive events |
events that cannot happen at the same time |
| |
inclusive events |
two events that can happen at the same time |
