Suppose a discrete random variable X takes only three values 0, 2 and 3. If P(0)=0.5, P(2)=0.2and P(3)=D0.3 then P(X>1) is equal to:Select one:a. 0.3b. 0.2C. 0.5d. 0

The discrete random variable X takes only three values 0, 2, and 3. The probabilities are P0=0.5,…

Answered: Suppose a discrete random variable X…

Suppose a discrete random variable X takes only three values 0, 2 and 3. If P(0)30.5, P(2)=0.2 and P(3)=0.3 then P(X>1) is equal to: Select one: a. 0.3 b. 0.2 с. О.5

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

A sample of n = 20 observations is drawn from a normal population with u = 980 and o = 240. Find each of the following: A. P(X > 1065) Probability = %3D B. P(X 920) Probability = %3D
If a researcher reported for a single-sample t-test that t(17) = 2.90, p<.02, how many subjects were there in the study?
A sample of n = 9 scores is obtained from a population with μ = 45 and σ = 6. If the sample mean corresponds to a z-score of +1.00, then what is the value of the sample mean? Make sure you write + or - before the value. Note: SHOW YOUR WORK!!
A quality control supervisor in a cannery knows that the exact amount each can contains will vary, since there are certain uncontrollable factors that affect the amount of fill. The mean fill per can is important, but equally important is the variation, σ2, of the amount of fill. If σ2 is large, some cans will contain too little and others too much. To estimate the variation of fill at the cannery, the supervisor randomly selects 10 cans and weighs the contents of each. The weights (in ounces) are 7.96, 7.90, 7.98, 8.01, 7.97, 7.96, 8.03, 8.02, 8.04, 8.02 . Construct a 90% confidence interval for the true variation in fill of cans at the cannery. Based on the CI, can you confirm that the fill has a standard deviation lower than 0.05 ounce
Seativork A. Classify each random variable as discrete or continuous 1. X: Number of women among 10 newly hired teachers 2. Y: Height (in inches) of a randomly selected adult male 3. Z: Number of car accidents among 8 selected cities 4. A: Amount of rainfall (in mm) in the different cities in Metro Manila 5. B: Number of gifts received by 20 students during Christmas season 6. C: Weight (in grams) of 8 randomly selected Math books 7. D: Cost: (rounded to the nearest PHP) of a Statistics book 8. E: Number of eggs a hen lays 9. F: The amount of milk obtained from a cow 10. G: Average temperature (in °C) in Baguio City for the past 5 days
A sample of n=36 observations is drawn from a normal population with μ=950 and σ=230. Find each of the following: A. P(X¯>1030) Probability = B. P(X¯<877) Probability = C. P(X¯>907) Probability =
A sample from a normal population with u=50 and o =6 has a mean of M =48.20.If the sample mean corresponds to a z=-1.50,then how many scores are in the sample?
Of those women who are diagnosed to have early-stage breast cancer, one-third eventually die of the disease. Suppose a screening program for the early detection of breast cancer wras started in order to increase the survival rate p of those diagnosed to have the disease. A random sample of 200 women was selected from among those who were screened by the program and who vwere diagnosed to have the disease. Let x represent the number of those in the sample who survive the disease. A USE SALT (a) If you wish to determine whether the community screening program has been effective, state the alternative hypothesis that should be tested. O Hgip + O H;: p > O H: p= O Hgi p O Ho: P = O Hoi p * (c) If 194 women in the sample of 200 survive the disease, can you conclude that the community screening program was effective? Test using a = 0.05. Find the test statistic and the rejection region. (Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused region.)…
Suppose that the length of long-distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to eight minutes. a. Define the random variable. X = %3D b. Is X continuous or discrete? с. X~ d. µ=- e. o =
The owner of a computer company claims that the proportion of defective computer chips produced at plant A is higher than the proportion of defective chips produced by plant B. A quality control specialist takes a random sample of 80 chips from production at plant A and determines that there are 12 defective chips. The specialist then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pB = the true proportion of defective chips from plant B. Which of the following is the correct P-value for the hypotheses, ?
./
How many simple randóm samples of size 3 can be selected from a population of size 7? а. 35 b. 210 с. 3 d. 343 е. 7 f. 21