Question 50
Mark |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
No of student |
3 |
4 |
Mark |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
No of student |
3 |
4 |
The probability of a student passing any examination is $\tfrac{2}{3}$.If the student takes three examinations. What is the probability that he will not pass any of them?
In how many can 9 people be seated if 3 chairs are available?
In how many ways can a delegates of 3 be chosen 5men and 3woman, if at least 1man and 1 woman must be included?
What is the mean deviation of x , 2x, x +1, and 3x, if the mean is 2
5, 8, 6 and k occur with frequencies 3, 2, 4 and 1 respectively and have a mean of 5.7. Find the value of k
The pie chart above represents 400 fruit in display in a grocery store. How many apples are in the store?
No of Days |
1 |
2 |
3 |
4 |
5 |
6 |
No of Students |
20 |
2x |
60 |
40 |
x |
50 |