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Which measure of central tendency is most appropriate for this data?
7,5,9,10,89,12,4,11
A total of 120 engineering students took exams in physics and statistics. 30 of them failed
both exams, 8 failed only the physics exam, and 35 failed the statistics exam. If a student is
selected at random, what is the probability that he passed the physics exam given that he
failed the statistics exam?”
If the variation of 5 values about their mean are : -2 , c , 5 , -3 , 4 then the value of constant c is ?
The electricity supply to homes in an area is cut off at a rate of 3 times per month. What is the probability that the electricity will be cut off at least twice in half a month?
A student can take 4 math courses OR 3 physics courses.
How many choices does he have?
A password consists of 3 digits, each digit can be from 0 to 9.
How many different passwords can be formed?
