Question

1 The variance of a given distribution is 25. What is the standard deviation.
2 Seven Matrons assembled for a meeting, shake hands with one another. How many handshakes take place……………….?
3 What is the evaluation of 5! ?
4 If four coins are flipped in succession, then the number of possible outcomes is…………….
5 The probabilities of a boy passing English and Mathematics tests are x and y respectively. Find the probability of the boy failing both tests.
6 Parameter is a descriptive measurement obtained from a whole………………
7 The grade of student on six examinations were 84, 91, 72, 68, 87, and 78. What is the arithmetic mean of the grades?
8 The scores of 5 students in an examination are: 6, 5, 8, 7 and 4. Find the variance.
9 The scientific method for collection, summarization, presentation, analysis and interpretation of data is called