Question

A hospital tracked the day of the week each baby was born and whether or not the delivery was scheduled in advance. The following two-way table displays data for the sample of babies born in a particular year at that hospital.

Answer 1

Explanation:

Yes, the events are mutually exclusive.

P(Tuesday OR Friday)= 0.32

Answer 2

Part 1: The correct answer is (A) Yes

• Yes, the events Tuesday and Friday are mutually exclusive
• As the number of babies born on each day is Independent of that on the other day.

Part 2: P(Tuesday OR Friday)= Number of babies born on Tuesday or Friday/                              

                                                   Number of babies born in a week

P(Tuesday OR Friday)= (20+70+15+55)/500 = 160/500= 0.32

Therefore, P(Tuesday OR Friday)= 0.32