Let A = {x, y, z, u} and B = {a, b}. A function f : A → B is... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

Let A = {x, y, z, u} and B = {a, b}. A function f : A → B is selected randomly. The probability that the function is an onto function is

A

$\frac{5}{8}$

B

$\frac{7}{8}$

C

$\frac{1}{35}$

D

$\frac{1}{8}$

Answer

$\frac{7}{8}$

Explanation

Solution

The correct answer is (B) : $\frac{7}{8}$ .