A basket contains 3 red and 1 white identical balls. A ball is drawn from the basket at random. Calculate the probability that it is either white or red.

Similar Questions

Solve for x in the equation $5^{x} \times 5^{x + 1} = 25$...

The sum of the first n terms of a linear sequence is $S_{n} = n^{2} + 2n$. Find the common differe...

Given that a = 5i + 4j and b = 3i + 7j, evaluate (3a - 8b). ...

Find the magnitude and direction of the vector $p = (5i - 12j)$...

Find the angle between i + 5j and 5i - J ...

Simplify $\frac{\sqrt{3}}{\sqrt{3} - 1} + \frac{\sqrt{3}}{\sqrt{3} +1}$...

Given that $r = 2i - j$, $s = 3i + 5j$ and $t = 6i - 2j$, find the magnitude of $2r + s - t$...

Calculate, correct to two decimal places, the area enclosed by the line 3x - 5y + 4 = 0 and the axes...

Given that $\frac{1}{8^{2y - 3y}} = 2^{y + 2}$....

ABCD is a square. Forces of magnitude 14N, 4N, 2N and $2\sqrt{2} N$ act along the sides AB, BC, CD...