A class of all possible subsets of space S is called

Find the sum to infinity of the following series 3 + 2 + 4 + 4/3 + 8/9 + 16/27 + ......

Which of the following points does not lie on the line 2y + 5x -4 = 0?

If un = 2, 6, 10, ..., the sum of the terms of the sequence above is

A company employs 100 people, 65 of whom are men. 60 people including all the women are paid weekly. The number of the men that are paid weekly is

A straight line has a gradient of -2 and passes through the point (4, 1). What is its equation?

In an arithmetic sequence whose 4th term is 14 and whose 11th term is 70, the first term and common difference are

List the integral values of which satisfy the inequality $-2<7-3x\le 10$.

P is the point (3, 5). Q is the point (-1, 9). R is the midpoint of PQ. Which one of the following lines does R lie on?

Paul and his friend, Peter went to buy an article costing ₦600. Peter had 10% of the cost and Paul, 40% of the remainder. How much did they have altogether?

The chances of three independent events P, Q, R occurring are $\frac{\mathrm{1/}}{2}$, $\frac{\mathrm{2/}}{3}$,$\frac{\mathrm{1/}}{4}$ respectively. What are the chances of P and Q only occurring?

A chord 6.6m long is 5.6m from the centre of a circle. The radius of the circle is

In a class, 120 students speak English or French or both. 70 speak English and 55 speak French. How many speak English but not French?

A rectangular box with a square base and no top has a volume of 500 cm, the dimensions of the box that require the least amount of material are

The heights in cm, of 10 children are 145, 163, 159, 162, 167, 149, 150, 160, 170, and 155. The mean height of the children is

The roof of a shelter is made from a piece of corrugated iron 2.3m long inclined at 18º to the horizontal. How far from the wall does the roof stick out?

In an arithmetic sequence with 25 terms, if the first term is 60 and last term is -12 the common difference is

A dealer increased the price of an item by 20%, and then increased the price of the same item by 30%. If x is the original price, what is the price after the two increases?

In a survey of villagers, it is found that 20% of the people have visited Kano and 25% have visited Port Harcourt. If 5% have been to both cities, then the percentage that have visited neither Kano nor Port Harcourt is

The line y = 5x – 3 and y = 2x + 9 intersects at P. What are the coordinates of P?

Two dice are thrown. What is the probability that the sum of the two numbers obtained is greater than 10?

Which of these is a measure of location?

Find the variance of the numbers k, k + 1, k + 2.

One of these is not a desirable feature of a good statistical table

A straight line has the equation 10y = 3x + 15. Which of the following is true?

Given the list of numbers {1, 6, 3, 9, 16, 11, 2, 9, 5, 7, 12, 13, 8}, what is the median?

A housewife bought five yams at Y34 per yam and three oranges at Y5 each where Y is the currency reckoned in base six. The total amount spent by the housewife is

Find the value of p, if the line which passes through (-1, p) and (-2p, 2) is parallel to the line 2y + 8x - 17 = 0.

What is sin 30${}^{}$?

A _______ variation is one whose values convey the concept of attribute rather than number.

Statistics is a set of tools whose proper use will _______ the decision maker.

What is the sum of the first 40 even positive integers?

Find the number of sides of a regular polygon whose interior angle is twice the exterior angle.

Find the principal which amounts to ₦4,400 at simple interest in 5 years at 2% per annum

Find the equation of the line through (5,7) parallel to the line 7x + 5y - 5 = 0.

Tunse bought a house for ₦1,250,000.00 and spent ₦350,000.00 to renovate it. He then sold the house for ₦2,000,000.00. What is the percentage gain?

The length of a rectangle is three times its width. If the perimeter is 72 cm, the width of the rectangle is

Divide the L.C.M. of 36, 54 and 90 by their HCF.

_________ are used when you want to visually examine the relationship between two quantitative variables.

Rationalize $\frac{(4\sqrt{7}+\sqrt{2})\; /}{(\sqrt{2}-7)}$