Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

The given table shows the marks obtained by 50 students out of 100 marks in an examination Marks obtained \( 0 - 25 \quad 25 - 50 \quad 50 \) No, of students \( 10 ^ { 7 } \) ? 20 (i) Find the probability that a student obtained marks \( ( i j ) \) or above If \( 50 \% \) are passing marks, find the probability of the students failing in the exam

Open in App
Solution
Verified by Toppr


Was this answer helpful?
0
Similar Questions
Q1
The average marks obtained by 100 candidates in an examination are 45. If the average marks of the passed students are 50 while the average marks of the failed students is 40. Then find the number of students who passed the examination
View Solution
Q2
The marks obtained by 12 students in an examination (out of 50) are given below.
18,35,2,27,40,0,21,33,27,8,36,23
Find the mean marks.
View Solution
Q3
The marks obtained by 90 students in mathematics out of 100 are given below.
Marks 0−20 20−30 30−40 40−50 50−60 60−70 70 and above
No. of students 7 8 12 25 19 10 9
From these students, a student is chosen at random.
What is the probability that the chosen student
(i) gets 20% or less marks?
(ii) gets 60% or more marks?
View Solution
Q4
Following is the distribution of marks of 50 students in a class:
Marks (more than) : 0 10 20 30 40 50
No of students : 50 46 40 20 10 3
Calculate the Median Marks . If 60% of students pass this examination , find out the minimum marks obtained by a pass candidate.
View Solution
Q5
Find the mean, mode and median of marks obtained by 20 students in an examination. The marks are given below.
Marks0−1010−2020−3030−4040−50
No. of students 1 4 5 8 2
View Solution