Question

A spinner numbered from 1 to 8 is spun find the probability that you will get an even number or 8A. ¼B. ⅜C. ½D. ⅝

Answer 1

5/8

Explanations:

What is probability?

This is the likelihood or chance that an event will occur. Mathematically;

`Probability=\frac{\text{ expected outcome}}{total\text{ outcome}}`

If a spinner numbered from 1 to 8 is spun, the total outcome will be 8.

Even numbers between 1 and 8 inclusive are:

E = {2, 4, 6, 8}

n(E) = 4

Pr(getting an even number) = 4/8 = 1/2

Pr(getting a number 8) = 1/8

The probability that you will get an even number or 8 is expressed as:

​

`\begin{gathered} Pr(even\text{ number or 8})=(4)/(8)+(1)/(8) \\ Pr(even\text{ number or 8})=(5)/(8) \\ \end{gathered}`

Hence the probability that you will get an even number or 8​ is 5/8