5,381 Answered Questions for the topic probability

Probability

09/30/22

A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 - 0.75, $50 - 0.25. Over many weeks, what is a worker's expected weekly bonus?
A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 - 0.75, $50 - 0.25. Over many weeks, what is a worker's expected weekly bonus?
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Probability

09/29/22

If one paient was selected at random, what is the probability the patient is a female age less than 20?
Patients Age < 20 20 ≤ Age < 40 40 ≤ Age < 60 Age ≥ 60Male 64 33 53 68Female 56... more
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Probability

09/29/22

If one patient was selected at random, what is the probability the patient is age ≥ 60 ggiven female?
Patients Age < 20 20 ≤ Age < 40 40 ≤ Age < 60 Age ≥ 60Male 64 33 53 ... more
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Probability Statistics

09/26/22

Mean and Standard Deviation of Binomial Distribution
A company produces processing chips for cell phones. At one of its large factories, 2% of the chips produced are defective in some way. A quality check involves randomly selecting and testing 500... more
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Probability

09/26/22

calculate probability
the verbal subscale on the SAT (SAT-CR) has a normal distribution with a mean of 500. and a standard deviation of 100. Consider the roughly one million high school seniors who took the SAT last... more
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Probability

09/23/22

Probability and statistics

On one large campus, 18% of students surveyed said that they spend less than an hour a night studying. If three students are chosen randomly, find the following probabilities.Part 1 of 2(a) What's... more
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Probability

09/23/22

Probability and statistics

How many different ID cards can be made if there are five digits on a card and no digit can be used more than once? What if digits can be repeated?Part 1 of 2There are different ID cards that can... more
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Probability

09/23/22

Sets and probability

LetU=126.27, 28, 29, 30, 31, 32, 33, 34, 35)A = (29, 30, 31, 32)B = (126,28, 30, 32, 34)C= (27, 29, 30, 34, 35)Find the set.(A' U B)' U C' =
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Probability

09/23/22

Probability and statistics

How many different ways can four types of laser printers be displayed on a shelf in a computer store?There are [ ]different ways to display the four types of laser printers on a shelf
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Probability Statistics

09/23/22

Probability and statistics

Diane is putting 12 colored light bulbs into a string of lights. There are 3 vellow light bulbs, 6 blue light bulbs, and 3 orange light bulbs. How many distinct orders of light bulbs are there if... more
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Probability Statistics

09/23/22

Probability and statistics

(a) There are 17 appetizers avallable at a restaurant. From these, Torn is to choose 13 for his party.How many groups of 13 appetizers are possible?(b) A certain committee consists of 18 people.... more
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Probability

09/23/22

Probability and statistics

A nursery advertises that it has 16 elm trees for sale. Unknown to the nursery, 5 of the trees have already been infected with Dutch elm disease and will die within a year. (Hint: The buying of... more
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Probability Statistics

09/23/22

Probability and statistics

A survey found that 37% of people earning between $30,000 and $75,000 said that they were very happy. If 5 people are selected at randorn, find the probability that at most 1 person who earns... more
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Probability Statistics

09/19/22

Probability (Intro, Mult/Add Rules, & Counting) Exercises
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 102 people in the 18-21 age bracket and finds that 87 of them respond and 15... more
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Probability Math

09/14/22

Quadratic Polynomial Profit Problem...please help
For a certain company, the cost for producing x items is 55x+300 and the revenue for selling x items is 95x−0.5x2.A) set up an expression for the profit from producing and selling x items.B) find... more
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Probability Statistics

09/12/22

probability and stats
Giving a test to a group of students, the grades and genders are summarized below. A B C Total Male 17 20 12 49 Female 2 3 15 20 Total 19 23 27 69 If one student is chosen at random,find... more
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09/10/22

Applied Probability & Information Theory - Joint Entropies
A child’s toy contains two windows in each of which a clown’s face appears when a button is pressed. The clown may be either smiling or crying. The design is such that the probability of each... more
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09/10/22

Jensen’s Inequality & Strictly convex functions
Using the Jensen’s Inequality to show that f(x) = x 2 is strictly convex function.
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Probability Statistics

09/10/22

Probabilistic Independence
Explain what it is meant by two random variables X and Y are probabilistically independent.
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Probability Math Statistics

09/10/22

Lottery Probability Gains and Losses
The LotLot Lottery has a game called pick 4 numbers from 1 to 9, where player pays 50 pesos. If the 4 numbers come up in any order, then the player wins 6,300 pesos. Then the expected amount of... more
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Probability

09/07/22

How do I find P(heart or red) in four decimal places
P(heart or red)=
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Probability Statistics

09/06/22

If a green jelly bean is selected from the bag, what is the probability that the transferred jelly bean was green?
A box has 5 blue and 2 green jelly beans. A bag has 2 blue and 5 green jelly beans. A jelly bean is selected at random from the box and placed in the bag. Then a jelly bean is selected at random... more
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Probability

09/05/22

Find the probability that exactly two cells remain empty
Twenty balls are placed random into four cells. Find the probability that exactly two cells remain empty
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Probability

09/05/22

How many mice are there in a litter?

Six mice are choosen (without replacement) from a litter containing three white mice. The probability that both white mice are chosen is twice the probability that neither is chosen. How many mice... more
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Probability

09/05/22

Twenty balls are placed in random into four cells. Find the probability that exactly two cells remain empty
Twenty balls are place in random into four cells. Find the probability that exactly two cells remain empty
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