Question 263239
We know that the probability that each calculator is defective is 10%, or 0.1. <br/>
probability the first calculator is defective = 0.1
probability the second calculator is defective = 0.1
probability the third calculator is defective = 0.1<br/>
To find the probability that the first AND second AND third are defective, we need to multiply them all together.<br/>
{{{(0.1)*(0.1)*(0.1) = 0.001}}}<br/>
To convert a decimal to a percentage, we multiply by 100.<br/>
{{{0.001 * 100 = 0.1}}}<br/>
So, the probability that all three calculators are defective is 0.1%.