Question

A die is thrown 500 times and the outcomes 1, 2, 3, 4, 5, 6 have frequencies as given below

$\begin{array}{ccccccc}\text{Outcome}& 1& 2& 3& 4& 5& 6\\ \text{Frequency}& 75& 85& 90& 80& 75& 95\end{array}$

What is the probability of getting a value greater than or equal to 4?

• A. 2
• B. 0.5
• C. 0.34
• D. 0.68

Answer 1

The correct option is B

0.5

Empirical probability = $\frac{No.oftrialsinwhichthedesiredeventhappened}{Totalno.oftrials}$

Number of times a 4 or 5 or 6 was rolled = 80 + 75 + 95 = 250

Probability of getting a value greater than or equal to 4 $=\frac{250}{500}=0.5$