Answers

2015-11-30T18:07:09+08:00
Red = 22 :7 or 22/7
yellow = 22 :9 or 22/9
0
out of 5200 household surveyed 2107 had a dog 807 had a cat and 303 had both a dog and a cat. what is the probability that a randomly selected household has a dog or a cat ?