The table above gives the frequency distribution of marks obtained a group of students in a test. If the total mark scored is 200. Calculate the value of y
The histogram above represented the weight of students who travelled out of their school for an examination. How many people made the trip.
The pie chart above illustrate the amount of private time a student spends in a week studying various subjects. Find the value of k
The cumulative frequency for $5\le x\le 12$from the distribution above is
If 5, 8, 6and 2 occur with frequencies 3, 2, 4 and 1, respectively, find the product of the modal and median number
What is mean deviation of 3, 5, 8, 11, 12 and 21?
A senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered?
In how many ways can 6 subjects be selected from 10 subjects for an examination?
In a basket, there are 6 grapes, 11 bananas and 13 oranges. If one fruit is chosen at random, what is the probability that the fruit is either a grape or a banana?
The table above shows the number of pupils in each age group in a class. What is the probability that a pupil chosen at random is at least 11 years old.