If six of the original calculators were defective how many

Suppose an electronics store receives a shipment of 30 graphing calculators.

(a) How many different ways can the store select 4 calculators from among the 30 to send to a customer?

(b) If six of the original calculators were defective, how many of the ways in part (a) contain no defective calculators.

(c) Use your answers from (a) and (b) to calculate the probability that the customer receives at least one defective calculator.

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If six of the original calculators were defective how many : suppose an electronics store receives a shipment of 30 graphing calculators.a how many different ways can the store

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