Question

A​ 12-sided solid has faces numbered 1 to 12. The table shows the results of rolling the solid 200 times. Find the experimental probability of rolling a number greater than 10.

Answer 1

The experimental probability of rolling a number greater than 10 is $17 \div 100$

• The calculation is as follows;

The total no of times rolling = 200

The probability of rolling 11 = 16 times

And, The probability of rolling 12 = 18 times

So, the probability is

$= (16 + 18) \div 200\\\\= 17 \div 100$

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