CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Sid is sitting at a bus stop, noting down the time interval of the buses arriving at the stop. His readings are as follows:

Bus123456789101112131415Time(hr:min)8:158:188:238:298:328:408:458:528:549:009:079:139:209:259:32

What is the probability that the next bus will come within 5 minutes?(in decimals)___


Solution

The time interval between each bus is as follows: 

Bus123456789101112131415Time(hr:min)8:158:188:238:298:328:408:458:528:549:009:079:139:209:259:32Time Interval(in min)35638572674757

So, the number of buses that arrived within 5 minutes is = 7

Therefore the probability that the next bus will come within 5 minutes is =714=12=0.5.

Note: We do not consider 15 buses in this case because Sid does not know when the last bus before 8:15 was. Hence he cannot say the exact time interval for the first bus.

flag
 Suggest corrections
thumbs-up
 
1 Upvotes


Similar questions
QuestionImage
QuestionImage
View More...


People also searched for
QuestionImage
QuestionImage
View More...



footer-image