Question

A random sample of students were asked whether they preferred to sweep the floor or to do the dishes, and whether they preferred to hear music or have silence while doing the chore. The results of the survey are summarized in the table. Sweep Dishes Total Music 60 96 Silence 62 104 Total 78. 122 200 What is the probability that a student prefers to do the chore in silence? O A 0.21 OB. 0.31 Ос 0.39 OD. 0.42 E. 0.52

Answer 1

this is:

`P=\frac{\text{silence}}{\text{total}}=(104)/(200)=0.52`

answer: E