Question

at the tire store, 10 out of every 100 tires are defective. if your parents randomly choose and purchase 4 new tires for a family vehicle from a set of 100 newly shipped titres, what is the probability that all four will be defective

Answer 1

1/46,060

Simplify: 5 out of 50

1) 5/50= 1/10
2) 4/49
3) 3/48 = 1/16
4) 2/47

2/47 * 1/10 * 4/49 * 1/16 = 8/368,480 = 1/46,060