For the experiment described below, let x determine a random variable, and use your knowledge of probability to prepare a probability distribution.Three balls are drawn (with replacement) from a bag that contains 6 white balls and 3 blue balls. The number of blue balls is counted.A probability distribution for the given experiment is as follows.XP(x)0 1 2 3(Round to four decimal places as needed.)

Answered: Image /qna-images/answer/c6b8326c-9496-4d03-b5a1-f48e8bc378d8.jpg

Answered: For the experiment described below, let…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Construct the probability distribution for rolling two dices where the random variableX= the sum of number of spots on both dices is at most 6.b. Use the probability distribution you have made in part a, and find the expected mean andvariance of X.
The value of E(X) for the dizerete random variable Xhaving tihe following probability distribution: o02 04 03 jo1
text Claire and George are tasked with decorating Easter eggs. The amount of eggs that Claire can decorate in an hour is a random variable with ?μ = 20 and ?σ = 2. The amount of eggs that George can decorate in an hour is a random variable with ?μ = 15 and ?σ = 5. Assume the amount of eggs Claire and George decorate are independent of each other. (Round your answers to four decimal places, if needed.) (d) Claire decides to decorate Easter eggs for one hour today and for another hour tomorrow. What is the standard deviation of the total number of eggs she will decorate in total?Answer:
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For the experiment described below, let x determine a random variable, and use your knowledge of probability to prepare a probability distribution. Three balls are drawn (without replacement) from a bag that contains 5 red balls and 6 blue balls. The number of blue balls is counted. A probability distribution for the given experiment is as follows. X 0 12 3 ... P(x) (Type simplified fractions.)
please help, thank you!
Suppose you choose four people at random from a Statistics class in which you know 20% of the students have an A average. Let X be the number of students in your sample who have an A average. Obtain the probability distribution for X and plot the probability histogram. X Probability 0 i N 3 A 0.45 0.4 0.35 0.3 i Probability histogram: 0.25 i MI 0.2 0.15- 0.1 0.05- 0 0 1 2 X Figure 1. 3 0.45 0.4 0.35 0.3 0.25 m 10 el 02 0.15 0.1 0.05 0 0 2 X Figure 2. 3 0.45 0.4 0.35- 0.3- 0.25 02- 0.15 0.1- 0.05 0 0 1 2 X Figure 3. 3
A census collected data on everyone that lived in a certain small town. The random variable X is the number of girls born to a randomly selected couple in that town who has four children. Its probability distribution is shown below. Complete parts a through c. X 4 O 0 P(X=x) 0.0857 2 0.3208 3 0.2415 0.2447 0.1073 i ne mean number of children in a family with four girls iS b. Obtain the standard deviation of the random variable. 0= 1.1209 (Round to four decimal places as needed.) c. Construct a probability histogram for the random variable; locate the mean; and show one-, two-, and three-standard-deviation intervals. Choose the correct histogram below. B. O C. D. Number of Girls Number of Girls Number of Girls Number of Girls 0.5- 0.5- 0.4- 0.3- 0.4- 0.5- 0.4- 0.3- 0.2- 0.1- 0.3- 0.2- 0.2- n 0.1- 0.1- 0 0012 0 1 2 3 4 01234 01234 01234 The mean is 2.0400. (Type an integer or decimal rounded to four decimal places as needed.) The one-standard-deviation interval is.. the…
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).t Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and a- 0.90 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is u= 4.70 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.70 grams? Use a- 0.05. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? Ho: H 4.7 g; right-tailed Ho: H= 4.7 g; H: < 4.7 g; left-tailed Ho: H- 4.7 g; H: 4.7 g; two-tailed (b) What sampling distribution will you use? Explain the rationale…
SOLVE STEP BY STEP IN DIGITAL FORMAT 3. Is the series 2n convergent or divergent? Hint: quotient criterion
NOTE: please follow the step in the given lesson below
conduct an experiment with 30 people (even not a household)

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