5,395 Answered Questions for the topic probability

Probability

10/01/22

Two neighbors,Ann and Becky, illuminate their houses before christmas. They each randomly turn on the lights between 6 pm and midnight. Ann keeps the lights on for 1.5 hrs and Becky for 2.5 hrs
Follows • 1
Expert Answers •1
Probability

10/01/22

a box has 5 red balls and N blue balls. Two of the balls are randomly chosen. The probability that the two balls of the same color is 11/21. Find the sum of all possible values of N.
Follows • 1
Expert Answers •1
Probability Math

10/01/22

The serial number on a bill consists of a letter followed by seven digits and then a letter. How many different serial numbers are possible, given the letters and digits cannot be repeated?
The serial number on a bill consists of a letter followed by seven digits and then a letter. How many different serial numbers are possible, given the letters and digits cannot be repeated?
Follows • 1
Expert Answers •2
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?
Follows • 2
Expert Answers •1
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
Follows • 0
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •2
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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' =
Follows • 1
Expert Answers •2
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •2
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1

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.
Follows • 1
Expert Answers •1
Probability Statistics

09/10/22

Probabilistic Independence
Explain what it is meant by two random variables X and Y are probabilistically independent.
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
Probability

09/07/22

How do I find P(heart or red) in four decimal places
P(heart or red)=
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.