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18 Cards in this Set
- Front
- Back
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The probability of a chance event is a number between _____ and _____ that expresses the likelihood of the event occurring.
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The probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring.
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A probability near ____ indicates an unlikely event.
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A probability near 0 indicates an unlikely event.
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A probability near _____ indicates that an event is neither unlikely nor likely.
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A probability near 1/2 indicates that an event is neither unlikely nor likely.
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A probability near ____ indicates a likely event.
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A probability near 1 indicates a likely event.
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A container has 3 yellow, 2 orange, and 4 pink roses. Without looking, if I choose one rose from the container, what is the probability that it will be orange? pink? yellow?
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it has a 2/9 probability of being orange, 4/9 probability of being pink and 3/9 probability of being yellow.
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At a classmate's birthday party, there are 7 bowls of ice cream, 4 of which are chocolate. What is the probability that a randomly selected bowl will have chocolate ice cream?
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The probability is 4/7.
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In the gym teacher's closet, there are 5 basketballs, 3 soccer balls, and 2 kickballs. If I took a ball out of the closet without looking, what is the probability it will be a basketball? A soccer ball? A kickball?
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The probability it will be a basketball is 5/10 or 1/2, the probability it will be a soccer ball is 3/10 and the probability it will be a kickball is 2/10 or 1/5.
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A box contains 100 green and blue pencils. Addison chooses a pencil out of the box, without looking, records the color, and then places that pencil back in the box. Addison has recorded 32 green pencils and 26 blue pencils. Using these results, predict the number of green pencils in the bag.
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32/(32+26) = x/100 32/58=x/100 58x=3200 x=55.2 I predict that there are 55 green pencils in the bag.
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Oliver collects three types of stamps, 1 cent stamps, forever stamps, and special edition stamps. If the probability of him choosing a stamp from is collection that is a 1 cent stamp is 5/10 and the probability of him choosing a forever stamp is 3/10, what is the relative frequency probability of him choosing a special edition stamp?
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5/10 +3/10 = 8/10 10/10-8/10= 2/10 the relative frequency probability of him choosing a special edition stamp is 2/10 (or 1/5)
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Molly rolls a 6-sided die 600 times. How many times would you expect her to roll a 3 or a 6?
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I would expect her to roll a 3 or 6 roughly, but probably not exactly 200 times.
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Tim flips a 2-sided coin ten times. Seven times the coin lands on heads. Tim is about to flip the coin for the 11th time. What is the probability that it will land on heads once again?
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The result of the 11th flip does not depend on the previous 10 flips. A 2-sided coin has two possible outcomes, so the probability is 1/2.
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A hockey player scored a goal on 4 of their last 16 shots. What is the probability that they will score a goal on their next shot?
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The probability is the number of times an event occurs out of the total number of trials, so, P(goal)= goals/total tries = 4/16 = 1/4
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A class has 24 students, with 15 girls and 9 boys. If the teacher randomly picks a student, what is the probability that it will be Jane? What is the probability that it will be a girl?
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There is a 1/24 probability that it will be Jane, and a 15/24 probability that it will be a girl.
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A two-sided coin is about to be tossed three times. What is the probability that the coin will land on heads twice and tails once (in any order)?
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There are 3 different ways to get 2 heads and 1 tail and 8 total possible outcomes, so the probability is 3/8.
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Paul has a white shirt and a blue shirt. He also has a brown pair of trowsers and a black pair of trowsers. How many different outfits can he create?
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He could create 4 outfits. (W-BL, W-BR, B-BL, B-BR)
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Paul has a white shirt and a blue shirt. He also has a brown pair of trowsers and a black pair of trowsers. What is the probability that he chooses to wear a white shirt with black trowsers?
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The probability is 1/4
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I am going to spin a spinner and then flip a coin. The spinner has three sections of equal size (red, green, and blue) and the coin has two sides (heads and tails). Create a tree diagram to show all of the possible outcomes.
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I am going to spin a spinner and then flip a coin. The spinner has three sections of equal size (red, green, and blue) and the coin has two sides (heads and tails). What is the probability that I will spin red or green and then flip a head?
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2/6 or 1/3
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