If 20% of a population of parts is defective, what is the probability of randomly selecting...
The probability of selecting a NON-defective part from a box containing 20 parts, 3 of which are defective is: a) 3/20 b) 1/3 c) 17/20 d) 1/20
Five percent (0.05) of the parts produced by a machine are defective. Twenty(20) parts are selected at random for study. A. what is the probability that more than 4 parts are defective? B. what is the probability that exactly 3 parts are defective? C. what is the expected number of defective parts in the sample? D. What is the variance and standard deviation of defective parts in the sample?
If 5% of the parts produced from a manufacturing process are defective, what is the probability that there are 30 or more defectives in a random sample of 500 items? a) 0.2475 b) 0.6515 c) 0.1515 d) 0.8485 e) 0.3485
A population contains 200 articles of which 5% are defective. a) What is the probability that a sample of 20 chosen without replacement has 3 defective articles?b) If the sample is chosen with replacement? I need help with part a), and would please check my answer for part b) : 0.059 Thanks
what is the probability of randomly selecting an individual from a normal distribution with a z score less than 0
A lot of 108 semiconductor chips contains 20 that are defective. Two are selected randomly, without replacement, from the lot. Round your answers to three decimal places (e.g. 98.765) a) What is the probability that the first one selected is defective? b) What is the probability that the second one selected is defective given that the first one was defective? c) What is the probability that both are defective? d) How does the answer to part (b) change (give the...
For a normal distribution of test scores, what is the probability of randomly selecting a test with a z-score of less than 0.24?
Parts coming off an assembly line have a 1% chance of being defective. If3 parts are randomly chosen from this line and X is the number of defective parts a. Compute the probability function f(x) for X. b. What is the probability that at least one of the three is defective? Parts coming off an assembly line have a 1% chance of being defective. All of the parts coming off the line are inspected. Let X be the number of...
A machine that manufactures automobile parts produces defective parts 13% of the time. If 10 parts produced by this machine are randomly selected, what is the probability that at least 2 of the parts are defective? Carry your intermediate computations to at least four decimal places, and round your answer to at least two decimal places.
c) If one of the individuals is randomly selected, what is the probability of selecting an individual diagnosed with step, given that the individual is a child? (see table below) Diagnosed Strep Age Group Yes No Child 60 111 Adult 29 211