Question
As part of a promotion, ppl who participate in a survey r sent a free coupon 4 1 of 3 winter activities: skiing , snow tubing, or sleigh rides. Participants have an equal chance of receving each type of coupon. I 900 ppl participate, how many would b expected 2 revcie a coupe 4 slieght rides?
A ) 2.3
B ) 300
C ) 450
D ) 600
A ) 2.3
B ) 300
C ) 450
D ) 600
Answers
GPT-4o mini
Since there are three winter activities (skiing, snow tubing, and sleigh rides), and participants have an equal chance of receiving each type of coupon, the probability of receiving a coupon for sleigh rides is:
\[
\frac{1}{3}
\]
To find the expected number of people who would receive a coupon for sleigh rides, we multiply the total number of participants by the probability of receiving that coupon:
\[
\text{Expected number of sleigh ride coupons} = 900 \times \frac{1}{3} = 300
\]
Therefore, the expected number of people who would receive a coupon for sleigh rides is:
**B) 300**
\[
\frac{1}{3}
\]
To find the expected number of people who would receive a coupon for sleigh rides, we multiply the total number of participants by the probability of receiving that coupon:
\[
\text{Expected number of sleigh ride coupons} = 900 \times \frac{1}{3} = 300
\]
Therefore, the expected number of people who would receive a coupon for sleigh rides is:
**B) 300**