Question

suppose that you can use a solid with 5 faces labeled a, b, c, d, and e to make a fair die. the table shows the sample space of possible outcomes for rolling the die twice. use the table to determine each probability. express your answers as fractions in lowest terms. sample problem p(b on the first roll) = 1/5 p(a or b on the first roll) > enter the answer in the space provided. use numbers instead of words.

Explanation:

Step1: Determine total number of outcomes

The die has 5 faces. When rolling it once, there are 5 possible outcomes.

Step2: Determine favorable outcomes for A or B on first roll

The favorable outcomes for getting A or B on the first - roll are 2 (either A or B).

Step3: Calculate probability

The probability formula is $P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. So $P(A\text{ or }B\text{ on the first roll})=\frac{2}{5}$.

Answer:

$\frac{2}{5}$