The percentages of marks obtained by a student in six unit tests are given below:
Unit test | I | II | III | IV | V | VI |
Percentage of mark obtained | 53 | 72 | 28 | 46 | 67 | 59 |
A unit test is selected at random. What is the probability that the student gets more than 60% marks in the test ?
Total number of unit tests: 6
Number of Unit tests in which, the student got more than 60%: 2
That includes 1.) unit test II and
2.) unit test V
Probability P() =
1.Let P(U) be probability of Student scoring more than 60% in unit tests
P (U) =
P (U) = =