Practice Page Uncertainty

Answer the following questions dealing with predicting outcomes.

 Predict how many times you will roll the number 5 in 12 rolls. about 2 times Answer There are 6 numbers on a die. You could roll a 1, 2, 3, 4, 5, or 6. 1/6 x 12 = 2 Prediction: about 2 times Explanation

 Predict how many times you will roll the number 2 in 24 rolls. about 4 times Answer There are 6 numbers on a die. You could roll a 1, 2, 3, 4, 5, or 6. 1/6 x 24 = 4 Prediction: about 4 times Explanation

 Predict how many times you will roll the number 3 in 36 rolls. about 6 times Answer There are 6 numbers on a die. You could roll a 1, 2, 3, 4, 5, or 6. 1/6 x 36 = 6 Prediction: about 6 times Explanation

 Predict how many times you will draw the color red in 60 draws. about 20 times Answer There are 6 marbles. Probability (red) = 2/6 2/6 x 60 = 20 Prediction: about 20 times Explanation

 Predict how many times you will draw the color blue in 60 draws. about 40 times Answer There are 6 marbles. Probability (blue) = 4/6 4/6 x 60 = 40 Prediction: about 40 times Explanation

 If you reach into the jar 50 times without looking and always replace the marker you choose, how many times do you predict you will choose a blue marker? about 10 times Answer There are 5 markers Probability (blue) = 1/5 1/5 x 50 =10 Prediction: about 10 times Explanation

 If you reach into the jar 50 times without looking and always replace the marker you choose, how many times do you predict you will choose a yellow marker? About 20 times Answer There are 5 markers Probability (yellow) = 2/5 2/5 x 50 =20 Prediction: about 20 times Explanation

 Predict how many times  you will spin the number 2 in 40 spins? About 10 times Answer There are 4 numbers Probability (2) = 1/4 1/4 x40 =10 Prediction: about 10 times Explanation

 Predict how many times you will spin the number 3 in 40 spins. About 20 times Answer There are 3 numbers Probability (3) = 2/4 2/4 x 40 =20 Prediction: about 20 times Explanation

 Predict how many times you will spin the number 1 in 40 spins. About 10 times Answer There are 3 numbers Probability (1) = 1/4 1/4 x 40 = 10 Prediction: about 10 times Explanation

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