Exercise 10 Page 881

When calculating a probability, we are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability of rolling a number less than 2 on a die, we will use the Probability Formula. P=Favorable Outcomes/Possible Outcomes On the die there are 6 numbers. This is the number of possible outcomes. 1, 2, 3, 4, 5, 6 Furthermore, there is 1 number that is less than 2. This is the number of favorable outcomes. 1, 2, 3, 4, 5, 6 Now we have enough information to calculate P(Less than2).

P=Favorable Outcomes/Possible Outcomes

SubstituteValues

Substitute values

P(Less than2)=1/6

▼

Convert to percent

CalcQuot

Calculate quotient

P(Less than2)=0.16

RoundDec

Round to 2 decimal place(s)

P(Less than2)≈0.17

WritePercent

Convert to percent

P(Less than2)≈ 17 %

The probability of rolling a number less than 2 on the die is 16 or about 17 %.