Question

Following table shows the marks scored by a group of 100 students in physics test out of 100 marks.

MARKS 0-20 20-30 30-40 40-50 50-70 70-100
NO.F STUDENTS 12 18 20 28 12 10


Find the probability that student obtained
(i) less than 30% marks
(ii) 50 or more marks


PLA GIVE ME THE ANSWER WITH EXPLANATION....PLZZZZ

Answer 1

Answer: (i) 30

Step-by-step explanation:(i)0-20 marks of 12 students and 20-30 marks of 18 students that is under 30% of marks so add the students and answer is 30 students