According to Trail Count, the annual survey of San Jose's off-street bicycle and pedestrian trail users, approximately 24% use trails daily. Suppose 12% use trails daily for exercise, and 8% use trails daily for commuting. Suppose a trail user is randomly selected. (Round your answers to four decimal places.) (a) Given that the person uses trails daily, what is the probability that he/she uses the trails for exercise?

a) 0.5

Step-by-step explanation:

a)

Let T be the event that person uses trails daily and E be the event that person uses trails for exercise.

We have to find the probability that person uses the trails for exercise given that the person uses trails daily which can be denoted as P(E/T).

P(E/T)= P(E∩T)/P(T)

We are given that P(T)=0.24 and P(E∩T)=0.12. So,

P(E/T)= 0.12/0.24

P(E/T)= 0.5

Thus, the probability that person uses the trails for exercise given that the person uses trails daily is 50%

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation: