n = 5
defective = 2
P(rejecting the box) = P(both are defective) = 2C2 / 5C2 = 0.10
2. (4 points) A box contains 5 batteries. Two of the batteries in the box are...
Suppose a packing box contains 24 smartphones, of which two phones are defective. If, while setting up a store display, a salesclerk selects 10 smartphones at random from the box without replacement, what is the probability that both defective smartphones will be selected and put on display?
There are 12 AAA batteries in a box and 2 are defective. Two batteries are selected without replacement. What is the probability of selecting a defective battery followed by another defective battery? Please put your answer in decimal form, with 2 decimal places
A carton of 18 rechargeable batteries contains three that are defective. What is the probability of an inspector choosing 4 of the batteries and get exactly one defective battery? Give your answer to three decimal places. A carton of 18 rechargeable batteries contains three that are defective. In how many ways can an inspector choose 4 of the batteries and get exactly two defective batteries? Give your answer to three decimal places. A carton of 18 rechargeable batteries contains one that...
The quality-control inspector of a production plant will reject a batch of automobile batteries if three or more defectives are found in a random sample of eleven batteries taken from the batch. Suppose the batch contains 7% defective batteries. What is the probability that the batch will be accepted?
Box I contains 4 defective and 8 non-defective products, whereas box II contains 5 defective and 5 non-defective products. An item is randomly chosen from box I and put into box II, and an item is then randomly selected from box II. a) the probability that the product selected from box II is defective is ? b) the conditional probability that the transferred item was defective, given that a defective item is selected from box II is?
2. There are 30 calculator batteries in a box; 22 are new and the rest are used. I randomly select 4 batteries and put them into my calculator. Let X count the number of new batteries in the group of 4 selected from the box a) What is the expected number of new batteries in the group of 4 selected? b) What is the standard deviation of the number of new batteries in the group of 4 selected? c) What...
1. A manufacturer of processing chips knows that 2% of its chips are defective in some way. Suppose an inspector randomly selects 4 chips for an inspection. Assuming the chips are independent, what is the probability that at least one of the selected chips is defective? 2. A box contains 4 red marbles, 3 green marbles, and 2 blue marbles. One marble is removed from the box and it is not replaced. Another marble is drawn from the box. What...
2-108. + A batch of 500 containers for frozen orange juice contains 5 that are defective. Two are selected, at random, with out replacement from the batch. (a) What is the probability that the second one selected is defective given that the first one was defective? (b) What is the probability that both are defective? (c) What is the probability that both are acceptable? Three containers are selected, at random, without replace- ment, from the batch. given that the first...
b What is the pröbablly at u tu 16 Light bulbs are sold in packs of 10. A quality inspector selects two bulbs at random without replacement. I both bulbs are defective the pack is rejected. If neither are defective the pack is accepted. If one of th defective the inspector selects two more from the bulbs remaining in the pack and rejects the pack if one or both are defective. What are the chances that a pack containing 4...
1) A flashlight has 6 batteries, 2 of which are defective. a) If 2 are selected at random without replacement, find the probability that both are defective. b) If 2 are selected at random with replacement, find the probability that both are defective. 2) How many different ways can an instructor select 4 textbooks from a possible 17?