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oddS The odds of an event compare the number of favorable and unfavorable outcomes when all outcomes are equally likely. Odds in favor 5 }}} Number of favorable outcomes
Here we will learn about describing probability, including describing probability using words, recognising the likelihood of an event and placing events on a probability scale. There are also describing probability worksheets based on Edexcel, AQA and OCR exam questions, along with further guidance on where to go next if you’re still stuck.
The table shows the probability that a counter taken at random from the bag will be pink, green or blue. (a) Work out the probability that the counter taken is yellow. There are 40 counters in the bag. (b) Work out the number of blue counters in the bag. 11: Darcy has a biased spinner.
Computing Odds. The ratio of the number of equally likely outcomes in an event E E to the number of equally likely outcomes not in the event E ′ E ′ is called the odds for (or odds in favor of) the event.
Navigate through this assortment of printable probability worksheets that includes exercises on basic probability based on more likely, less likely, equally likely, certain and impossible events, pdf worksheets based on identifying suitable events, simple spinner problems, for students in grade 4, grade 5, and grade 6.
Definition of Odds: Odds in probability of a particular event, means the ratio between the number of favorable outcomes to the number of unfavorable outcomes. Odds in favor and odds in against – probability:
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Example: the chances of rolling a "4" with a die. Number of ways it can happen: 1 (there is only 1 face with a "4" on it) Total number of outcomes: 6 (there are 6 faces altogether) So the probability = 1 6. Example: there are 5 marbles in a bag: 4 are blue, and 1 is red.
