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A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of 12 calculators is sent out containing 3 defective calculators and 9 working
asked by Jenna on October 28, 2016 
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The J.O. Supplies Company buys calculators from a Korean supplier. The probability of a defective calculator is 10%. If 15 calculators are selected at random, what is the probability that 4 or more of the calculators will be
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A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of twelve calculators is sent out containing three defective calculators and nine
asked by Anonymous on October 28, 2016 
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A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of twelve calculators is sent out containing three defective calculators and nine
asked by Anonymous on October 29, 2016 
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A sample of 4 different calculators is randomly selected from a group containing 47 that are defective and 29 that have no defects. What is the probability that all four of the calculators selected are defective? Round to four
asked by Maggie on July 16, 2017 
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A sample of four different calculators is randomly selected from a group containing 15 that are defective and 26 that have no defects. Find the probability that at least one of the calculators is defective
asked by Anonymous on March 18, 2019 
Statistics
A sample of 4 different calculators is randomly selected from a group containing 17 that are defective and 36 that have no defects. What is the probability that at least one of the calculators is defective?
asked by Sherri on September 9, 2007 
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A sample of 4 different calculators is randomly selected from a group containing 10 that are defective and 35 that have no defects. What is the probability that at least one of the calculators is defective?
asked by Terrell on June 24, 2010 
Math
An electronic store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected to be sent to a local high school. How many selections can be made? How many of this
asked by Oshurbekova on February 20, 2012 
Math
My question is to get a better understanding of this. Basically, these two problems, I did it WITHOUT replacement. So I would multiply each defects and so forth. My question is, would I have to subtract the total from 1 in the
asked by J on March 6, 2007