The probability of a student passing any exam is 2/3. If the student takes three exams, what is the probability that he will not pass any of them?
The acres for rice, pineapple, cassava, cocoa, and palm oil in a certain district are given respectively as 2, 5, 3, 11, and 9. What is the angle sector for cassava in a pie chart?
How many three-digit numbers can be formed from 32564 without repeating any of the digits?
The mean of a set of six numbers is 60. If the mean of the first five is 50, find the sixth number in the set.
Calculate the mean deviation of the set of numbers 7, 3, 14, 9, 7, and 8.
