Find the indicated probability. Round to the nearest thousandth.

A sample of 4 different calculators is randomly selected from a group containing 16 that are defective and 30 that have no defects. What is the probability that at least one of the calculators is defective?

Question

Find the indicated probability. Round to the nearest thousandth.

A sample of 4 different calculators is randomly selected from a group containing 16 that are defective and 30 that have no defects. What is the probability that at least one of the calculators is defective?

eviant · Answer

@Vocaloid

Vocaloid · Answer

probability that at least one of the calculators is defective = 1 - (probability that all 4 calculators are defective)

Vocaloid · Answer

start by calculating (probability that all 4 calculators are defective), remembering that you are not replacing the calculator after each draw

eviant · Answer

256?

Vocaloid · Answer

remember that probabilities must be between 0-1

eviant · Answer

I don't understand?

Vocaloid · Answer

you stated that 256 is the probability which is not a possible probability because all probabilities must be between 0-1.

Vocaloid · Answer

start by calculating the probability that one calculator is defective