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Probability using Binomial Distribution

7) On a very hot summer day, 5% of the production employees at Midland States Steelare absent from work. The production employees are to be selected at random for a special in-depth study on absenteeism.What is the probability of selecting 10 production employee at random on a hot summer day and finding that none of them are absent. A) 0.002 B) 0.344 C) 0.599 D) 0.100 8) Sponsors of a local charity decide to attract wealthy patrons to its $500 a plate dinner by allowing each patron to buy a set of 20 tickets for the gambling table. The chances of winning in each of these plays is 50-50. If you bought 20 tickets what is the chance of winning 15 or mo... click for more

Subject:

Statistics

Topic:

All Topics

Posting ID:

5745

OTA ID:

103060

View Details $1.99 Download Add to Cart

Business Statistics

Probability questions

Subject:

Statistics

Topic:

All Topics

Posting ID:

5746

OTA ID:

103570

View Details $1.99 Download Add to Cart

Probability - Binomial, Combinations

12) If 3% of the electric bulbs manufactured by a company are defective, find the probability that in a sample of 100 bulbs, five are defective 13) Three cards are drawn from a deck of 52 cards without replacement. Find the probability that a) two are jacks and one is king b) all cards are of one unit c) at least two aces are drawn

Subject:

Statistics

Topic:

All Topics

Posting ID:

5747

OTA ID:

103477

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Central limit theorem/Sampling distribution of a sample mean

An SRS of 400 American adults is asked, "What do you think is the most serious problem facing out schools?" Suppose that in fact 30% of all adults would answer "drugs" if asked this question. The proportion X of the sample who answers "drugs" will vary in repeated sampling. In fact, we can assign probabilities to values of X using the normal density cuve with mean 0.3 and standard deviation 0.023. Using this density curve to find the probabilites of the following events: a)At least half of the sample believes that drugs are the schools' most serious problem. b)Less than 25% of the sample believes that drugs are the most serious problem. c)The sample proportion is between 0.25 and 0.35.

Subject:

Statistics

Topic:

All Topics

Posting ID:

5758

OTA ID:

101298

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Central limit theorem/sampling distribution of a sample mean

A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are supposed to contain 300 milliliters. In fact, the contents vary according to a normal distribution with mean=298 ml and standard deviation=3 ml. a)What is the probability that an individual bottle contains less than 295 ml? b)What is the probability that the mean contents of the bottles in a six-pack is less than 295 ml?

Subject:

Statistics

Topic:

All Topics

Posting ID:

5759

OTA ID:

103059

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