Practice

Simple probability - Answers

1. \(\mathrm{P}(\) roll a 2\()=\frac{1}{6} \approx 0.17\)

2. \(\mathrm{P}(\) not a rap song \()=\frac{13}{22} \approx 0.59\)

3. \(\mathrm{P}(\) draw a black card \()=\frac{3}{10}=0.3\)

4. \(\mathrm{P}(\) beaver \()=\frac{1}{3} \approx 0.33\)

5. \(\mathrm{P}(\) draw a blue or red marble \()=\frac{16}{21} \approx 0.76\)

6. \(\mathrm{P}(\) not a birthday card \()=\frac{7}{21} \approx 0.33\)

7. \(\mathrm{P}(\) blue \()=\frac{1}{4}=0.25\)