Mixed practice Problem set B Answers

1. (a) \(\frac{47}{120}\) ≈ 0.392
2. (b) \(\frac{49}{120}\) ≈ 0.408
3. (c) \(\frac{13}{60}\) ≈ 0.217

1. (a) 0.5
2. (b) 0.1

\(\frac{10}{21}\) ≈ 0.476

1. (a) \(\frac{3}{5}\) ≈ 0.600
2. (b) \(\frac{3}{8}\) ≈ 0.375
3. (c) Not independent: 3/5 and 3/8

1. (a) 12
2. (b) \(\frac{23}{48}\) ≈ 0.479
3. (c) \(\frac{11}{23}\) ≈ 0.478

1. (a) 0.028
2. (b) 0.969

1. (a) \(\frac{1}{12}\) ≈ 0.0833
2. (b) \(\frac{21}{25}\) ≈ 0.840

1. (a) 0.0852
2. (b) 0.317

\(\frac{5}{72}\) ≈ 0.0694

1. (a) \(\frac{1}{2}\) ≈ 0.500
2. (b) \(\frac{5}{8}\) ≈ 0.625

1. (a) 0.25
2. (b) 0.7