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McGraw Hill Integrated II, 2012 View details

7. Vectors

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Exercise 56 Page 690

Use the Probability Formula.

Practice makes perfect

We can calculate the probability of rolling a number greater than 4 using the Probability Formula. P=Number of Favorable Outcomes/Number of Possible Outcomes In our case, the number of favorable outcomes is 2 as, on a dice, only 5 and 6 are greater than 4. In total there are 6 possible outcomes, because there are 6 different numbers on a dice. Therefore, we have enough information to find the probability of rolling a number greater than 4.

P=Number of Favorable Outcomes/Number of Possible Outcomes

SubstituteValues

Substitute values

P=2/6

UseCalc

Use a calculator

P=0.33333...

RoundDec

Round to 2 decimal place(s)

P≈ 0.33

The probability of rolling a number greater than 4 is about 0.33, which corresponds to option G.

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Exercises p.687-690

Exercise 56 Page 690

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