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Laabri

Unit 6A CFA Probability

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1.

A six-sided die was tossed 4 times and it landed on “5” 3 times. In theory, what is the probability it will land on “5” again? Type your answer as a fraction.

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2.

A student played a game using one of the spinners below. The table shows the results of 15 spins. Which spinner did the student use?

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3.

A bag contains 10 Snickers bars and 1 Twix bar and the outcome is drawing a Twix bar. Which phrase best describes the possibility of drawing a Twix bar?

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4.

Willie spun a spinner 30 times and recorded his results. What is the experimental probability of rolling a 2 or a 4?

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5.

A six-sided die is rolled 600 times.  In theory, how many times would you expect the die with the number "6" facing up?

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6.

A bag contains green, blue, and white marbles. The P(green) is 20%. The P(blue) is 0.50. Explain how likely it is to get a white marble?

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7.

In a math class, 25 out of the 30 students completed their homework. If this is representative of 180 students, how many students DID NOT complete their homework?

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8.

A spinner is divided into equal sections of red, white, blue, and green. Out of ten spins, the spinner landed on blue 7 times. How does this experimental probability compare with the theoretical probability?

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9.

What is the sample space for choosing a letter from the word "Probability"?

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10.

A bag has 10 red marbles, 12 blue marbles, 8 white marbles, 6 green marbles, and 4 yellow marbles. What is the P(compliment of yellow)?

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11.

Malua can win a free trip to Disney if he wins a game. He can choose from the following:

Flip a coin and it lands on heads.

Roll a dice it is an even number.

Spin the pointer on the spinner below and it lands on an odd number.

What should he do?

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12.

There are 20 marbles in a bag. 50% are red, 0.20 are blue, and 3/10 are green. Complete the graph to represent the data.