The pie chart shows the population of men, women, and children in a city. If the population of the city is 1,800,000, how many men are in the city?
The mean of the numbers 15, 21, 17, 26, 18, and 29 is 21. Calculate the standard deviation
Find the sum of the interior angle of a pentagon.
The diameter of a sphere is 12 cm. Calculate, correct of the nearest cm\(^3\), the volume of the sphere, [Take \(\pi = \frac{22}{7}\)]
A box contains 12 identical balls of which 5 are red, 4 blue, and the rest are green. If a ball is selected at random from the box, what is the probability that it is green?
