Math, asked by shreyas6091, 1 year ago

the given table shows the marks obtained by 50 students out of 100 in a history exam




1.find the probability that he has obtained 75 or more marks
2.if 50 percent are passing Marks,find the probability of the student failing in the history exam
3.find the probability that he/she has obtained less than 75​

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Answered by hanokkala123
36

1) no of students marks obtained equal to or more than 75 =10

Total students=50

Probability that he obtained marks more than or equal to 75

= No. Of get marks more or equal to 75/total students

=10/75=2/15

2)no. Of students failing exam=17

Total no. Of students =50

Probability that students failing exam

=no. Of students failing exam/total students

=17/50

3)he/she obtained less than 75=40

Total no. Of students =50

Probability that he/she get less than 75

=he/she getting less than 75/total no. Of students

=40/50=4/5

Answered by cindrella113
12

Step-by-step explanation:

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