Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CH 6 Vocab
math vocab
| Question | Answer |
|---|---|
| certain event | An event that is certain to occur. the probability of a certain event is always 1. ex: the probability of choosing red in a sack of red marbles is 1. |
| commision | the pay that's equal to a percent of sales. ex: a saleswoman recieved a 5% commision on $120. Her commision was $6. |
| complement | it's the opposite of that event. ex: the event NO RAIN is the complement of RAIN. |
| cross products | products formed from a proportion. ex: 3/4 = 6/8 are 3*8 and 4*6 |
| discount | the amount by which a price is decreased. ex: the price of a $10 book is reduced by a discount of $1.50 to sell for $8.50. |
| event | any outcome or group of outcomes. ex: in a game that includes tossing a coin and rolling a number cube, TOSSING HEADS AND ROLLING A 2 is an event. |
| impossible event | An event that has no chance of occurring.The probability of an impossible event is always zero. ex: the chance of picking a red marble in a bag w/ only green and blue marbles is zero. |
| indirect measurement | it's a method of determining length or distance w/o measuring directly ex: 240/540 = x/1192 ~ 529.8ft |
| markup | amount of increase in price. ex: a store buys a coat for $60 and sells it for $100. the markup is $40. |
| odds | a ratio that describe the likehood of an event. ex: for the odds of a coin toss, the odds are in favor of tossing heads 1:1. |
| outcomes | possible results of an action. ex: HEADS is an outcome of a coin toss. |
| percent | a ratio that compares a # to 100. the symbol is %.ex: 50/100 = 50% |
| percent of change | the percent something increases or decreases from its original amount. ex: a school's pop increases from 500 to 520 students. the percent of change is 520-500/500 = 4% |
| probability | THEORETICAL PROBABILITY is when outcomes are equally likely. EXPERIMENTAL PROBABILITY is based on data. ex: theoretical prob. of spinning the # 4 is 1/8 on a spinner of 8 diff. #s. |
| proportion | equality of 2 ratios. ex: 3/12 = 12/ 48 |
| rate | a ratio that compares quantities measured in diff. rates. ex: a student typed 1100 words in 50 minutes for a typing rate of 1100 words per minute, or 22/min. |
| ratio | a comparision of 2 quantities by division. ex: 72:100, 72 to 100, or 72/100 |
| scale drawing | an enlarged or reduced drawing that is similar to an actual object or place. ex: a map |
| similiar figures | figures w/ corresponding angles that have equal measures and corresponding sides that have proportional lengths. ex: ABC~RTS |
| unit rate | rate that has a denominator of 1 ex: if you drive 165 mi in 3hr, your unit rate of travel is 55mi in 1hr or 55mi/h |
Created by:
ling97
Popular Math sets