SOLUTION: a sample of 4 calculators is randomly selected from a group containing 44 that are defective and 23 that have no defects. what is the probability that all four of the calculators s
Algebra.Com
Question 1056870: a sample of 4 calculators is randomly selected from a group containing 44 that are defective and 23 that have no defects. what is the probability that all four of the calculators selected are defective?
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
There are a total of 44 + 23 = 67 calculators
:
The probability that the first calculator chosen is defective is 44/67, second defective chosen is 43/66, third is 42/65 and fourth is 41/64
:
probability that all four are defective is 44/67 * 43/66 * 42/65 * 41/64 = approximately 0.1771
RELATED QUESTIONS
A sample of 4 different calculators is randomly selected from a group containing 16 that... (answered by 303795)
A sample of 4 diffrent calculators is randomly selected from a group containing 18 that... (answered by solver91311)
A sample of 4 different calculators is randomly selected from a group containing 17 that... (answered by Fombitz)
A sample of 4 different calculators is randomly selected from a group containing 16 that... (answered by stanbon)
A sample of 4 different calculators is randomly selected from a group containing 19 that... (answered by stanbon)
3. A sample of 4 different calculators is randomly selected from a group containing 13... (answered by Boreal)
A sample of 4 different calculators is randomly selected from a group containing 18 that... (answered by ikleyn)
A sample of 4 different calculators is randomly selected from a group containing 17... (answered by stanbon)
A sample of 4 different calculators is randomly selected from a group containing 16 that... (answered by ewatrrr)