Question

A die is thrown 1000 times with the frequencies for the outcomes 1, 2, 3, 4, 5 and 6 as given in the following table:

$\begin{array}{ccccccc}\text{Outcome}& 1& 2& 3& 4& 5& 6\\ \text{Frequency}& 165& 175& 180& 150& 145& 185\end{array}$

What is the probability of getting a 2 or 4?

• A. 0.515
• B. 0.245
• C. 0.325
• D. 0.455

Answer 1

The correct option is C

0.325

Number of times a 2 or 4 appears when a die is rolled = 175 + 150 = 325

Number of times a die is thrown = 1000

Probability of getting a 2 or a 4
$=\frac{\text{Number of times a 2 or 4 appears}}{\text{Number of times a die is thrown}}$

$\Rightarrow Probability=\frac{325}{1000}=0.325$