The attendance report of a class for 150 days is as follows:
StudentAttendance114621423147414951466145714781469145101501114312145131441414215148
What is the probability that a student has 98% or more attendance?
13
98 percentage of 150 =98100×150=147
We know, for an event E
P(E)=Number of trials in which the event happenedTotal number of trials
Here, the event is a student having an attendance of 98% or more.
From the given table, we see that students 3, 4, 7, 10 and 15 have an attendance of 98% or more.
Hence,
Number of students having an attendance of 98% or more = 5
Total number of students = 15
∴Required probability=515=13