4.49. A company sells LED bulbs in packages of 20 for 25....

Name: 4.49. A company sells LED bulbs in packages of 20 for 25. From past records, it knows that a bulb will be defective with probability .01. The company agrees to pay a full refund if a customer finds more than 1 defective bulb in a pack. If the company sells 100 packs, how much should it expect to refund?
Uploaded: 2024-08-29T15:06:44-08:00
Duration: 2 min 12 s
Channel: Hoan Nguyen
Description: 4.49. A company sells LED bulbs in packages of 20 for 25. From past records, it knows that a bulb will be defective with probability .01. The company agrees to pay a full refund if a customer finds more than 1 defective bulb in a pack. If the company sells 100 packs, how much should it expect to refund?

4.49. A company sells LED bulbs in packages of 20 for $25. From past records, it knows that a bulb will be defective with probability .01. The company agrees to pay a full refund if a customer finds more than 1 defective bulb in a pack. If the company sells 100 packs, how much should it expect to refund?

A manufacturing company regularly conducts quality control checks at specified periods on the products it manufactures. Historically, the failure rate for LED light bulbs that the company manufactures is 0.15%. Suppose a random sample of 10 LED light bulbs is selected. Complete parts (a) through (d) below: a. What is the probability that none of the LED light bulbs are defective? The probability that none of the LED light bulbs are defective is 0.4840 b. What is the probability that exactly one of the LED light bulbs is defective? The probability that exactly one of the LED light bulbs is defective is 0.3643 c. What is the probability that four or fewer of the LED light bulbs are defective? The probability that four or fewer of the LED light bulbs are defective is 0.9998 d. What is the probability that five or more of the LED light bulbs are defective? The probability that five or more of the LED light bulbs are defective is 0.0002

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