Question

caleb performed an experiment in which he rolled a number cube 100 times. he recorded the results in a table. what was the experimental probability of rolling a 4?

Explanation:

Step1: Sum up all frequencies

The sum of all frequencies should be \(1\). Let the experimental probability of rolling a \(4\) be \(x\). Then \(0.15 + 0.17+0.17 + x+0.21 + 0.16=1\).

Step2: Solve for \(x\)

Simplify the left - hand side of the equation: \(0.15+0.17 + 0.17+0.21+0.16+x=(0.15 + 0.17+0.17+0.21+0.16)+x\).
\(0.15+0.17+0.17+0.21+0.16 = 0.86\).
So the equation becomes \(0.86 + x=1\).
Subtract \(0.86\) from both sides: \(x=1 - 0.86\).

Answer:

\(0.14\)