Question
A group of men and women are asked if they prefer summer or winter the resulting two way frequency table shown.
summer winter
women 85 32
men 70 51
use the data in the table to find each probability
a. P(women)
b.P(women or summer)
c.P(woman and summer)
d.P(woman|summer)
summer winter
women 85 32
men 70 51
use the data in the table to find each probability
a. P(women)
b.P(women or summer)
c.P(woman and summer)
d.P(woman|summer)
Answers
oobleck
(a) 117 women and 121 men
so P(woman) = 117/238
(b) 117 women + 70 summer men
so P = 187/238
(c) 85/238
(d) 155 summer, so P = 85/155
so P(woman) = 117/238
(b) 117 women + 70 summer men
so P = 187/238
(c) 85/238
(d) 155 summer, so P = 85/155