Using the CASIO fx-9750GII calculator, please help me answer the following quest

Question

Using the CASIO fx-9750GII calculator, please help me answer the following question. Also, please show your work: The quality inspector for a company that produces heptium computer chips has determined that 3% of the production is defective. The company does not perform final product inspection, but instead agrees to replace any defective chip found by any customer and will give the customer a $5 discount on their next order. Another customer assembles computer motherboards, each with 7 heptium chips. If any chip fails, then the motherboard fails. What is the probability that a motherboard will fail?

Explanation / Answer

Probability that the motherboard will fail is computed as:

= 1 - Probability that all the 7 chips works fine

= 1 - (1 - 0.03)7

= 1 - 0.977

= 0.1920

Therefore 0.1920 is the required probability here.

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