Question

q34 .plz tell me steps . or i will report u . if i liked i will give u thx:D pls tmmorow is my exm

Answer 1

Answer:

50% marks of total marks being 80 is 40.

Well, the students who've got less than 40 are the ones who have their marks lying in the range of 0-20 and 21-40 which is 18+19 = 37

So,

(I) Probability of the students who got passing marks = 80-37/80 = 43/80

(ii) Probability of student not getting passing marks = 37/80

(iii) Below 21 marks student's probability = 18/80 = 9/40

Hope this helps you !

Answer 2

Answer:

answer is given in the image pls refer that