Please read the following and answer the questions on the back of the WKS (15 minutes)
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PROBABILITY
Definition: Number of favorable outcomes/number of possibilities
Examples:
Determine the probability of each event:
1. A coin will land heads up
2. There is a January 1 this year
3. A baby will be a boy
4. Pigs will fly
5. You will roll a multiple of 2 on a die
6. A person's birthday is in June
Find the probability of each outcome if a computer randomly chooses a letter in the word "probability".
1. the letter b
2. P(not i)
3. the letter e
4. P(vowel)
5. not b or y
6. the letters a or t
probability
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A card is selected at random from a standard deck of 52 cards.
1. What is the probability of selecting a red card?
2. What is the probability of selecting a queen?
3. P( )
4. P (black 6)
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ODDS: The number of favorable outcomes to the number of unfavorable outcomes.
Find the odds of each outcome if you randomly select a coin from a jar containing 80 pennies, 100 nickels, 70 dimes, and 50 quarters.
1. selecting a quarter
3. selecting a penny
5. not selecting a dime
2. selecting a nickel
4. not selecting a nickel
6. selecting a penny
or a dime
A card is selected at random from a standard deck of 52 cards.
3. What are the odds of selecting a heart?
4. What are the odds of not selecting a black 6?
5. If the odds that an event will occur are 8:5, what is the probability that the event will occur?
6. If the probability that an event will occur is 2/3, what are the odds that the event will occur?
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