Suppose that the Petroleros baseball team is equally likely to win any particular game as not to win it. Suppose also that we choose a random sample of 30 Petroleros games. Answer the following. (If necessary, consult a list of formulas.) (a) Estimate the number of games in the sample that the Petroleros win by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response. ? (b) Quantify the uncertainty of your estimate by giving the standard deviation of the distribution. Round your response to at least three decimal places.

Q: Provide an appropriate response. The random variable x represents the number of computers that…

A: Mean E[x] = ∑xP(x)

Q: 3. A surgical technique is performed on ten patients. You are told there is an 83% chance of…

A: Givenn=10p=0.83

Q: 9. A team of 3 players is to be chosen from 4 boys and 5 girls. Find (i) probability distribution…

A: Solution

Q: A census collected data on everyone that lived in a certain small town. The random variable X is the…

A:

Q: In an certain species of newt, offspring are born either green or black. Suppose that 45% of these…

A: The mean of the sampling distribution of the sample proportion. The standard deviation of the…

Q: The average height of all the workers in a hospital is known to be 66.7 inches with a standard…

A: Let  X be the random variable from normal distribution with mean (μ) = 66.7, standard deviation (σ)…

Q: How does the deviation calculation help you determine whether your coin tosses are close enough to…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: 1. Create the probability distribution table for X: X outcome a. E[X] = μx b. SD[X]=ox profit æ,$…

A: The life insurance policy for her iguana is for the price of $100 per year.Neveah will receive $4000…

Q: On any given morning, Joe eats 0, 1, or 2 eggs, with probabilities 0.2, 0.5, and 0.3, respectively,…

A:

Q: The following table lists the frequency distribution for a sample of students majors in DU. Find the…

A: From the given table, Total frequency=49+36+28+27=140 Number of groups 4

Q: Q14. In an experiment when two dices are thrown simultaneously, find expected value of the sum of…

A: Answer: From the given data,

Q: 4. Compute the mean and the Standard deviation of the probability distribution table of : 2 Y 0.2…

A:

Q: -What proportion/percent of crop workers are less than 20 years old? In your answer leave off the…

A: Here given chart shows the age distribution of crop workers in the United States. On x axis…

Q: In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but…

A: Given P=0.55 n=7

Q: 2. Find the mean of the probability distribution of the random variable X which can take only the…

A: Given :P(2)=310P(3)=25P(4)=15P(5)=110

Q: The population consists of the ages of 5 children, as follows: 3, 6, 9, 12 and 15. Construct a…

A: The population consisting of ages of 5 children that is the population size N = 5 The population…

Q: 1. Results of a study conducted to determine the water consumptions in number of cubic meters of…

A:

Q: Estimate the number of pistons in the sample that are defective by giving the mean of the relevant…

A: It is given that the number of observations is independent of the probability of success p = 3% =…

Q: Please answer the problem. I'll give you a rate if you answered it correctly. Ages: Father - 38…

A: Standard deviation : The standard deviation could be a live of however way a group of knowledge…

Q: About 30% of all recorded tsunamis have been nine meters or higher.† You are writing a report about…

A: Note: In this question there are 5 parts and we are authorized to answer up to 3 subparts only, So…

Q: A rainstorm in Portland, Oregon, wiped out the electricity in 5% of the households in the city.…

A:

Q: Which of the following statement is true about a sampling distribution A. it is the probability…

A: The sampling distribution of a statistic is known as the probability distribution of all the…

Q: A team of researchers obtained a z-score for their sample that was z= 0.50. If they were conducting…

A: The  z-score for their sample that was z= 0.50. The level of significance is α=0.05 The probability…

Q: Suppose the frequency distribution of customer satisfaction ratings is given below: Rating…

A:

Q: For numbers 26-30, refer to the following: A roulette wheel in an amusement park has the numbers 1…

A: Solution Given That A roulette wheel in an amusement park has the numbers 1 through 60 , If you bet…

Q: 9. For each of the following tables, decide if it is a valid probability distribution for the sample…

A:

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: Step 1: Given that, Random variable (x)= Number of girls among 8 children we have to find the mean…

Q: Estimate the number of households in the sample that lost electricity by giving the mean of the…

A: Let p be the proportion of households that lost electricity. Given that p = 10% = 0.10 Let X denotes…

Q: The possible samples with mean tenure are 12, 14, 6, 19,12 S.No. Sample (12. 14) Sample mean 13

A: We need to perform the simple random sampling and find the probability for each sample and also…

Q: A news company reported that 8% of adult Americans have a food allergy. Consider selecting 15 adult…

A: The random variable adult Americans have a food allergy follows binomial distribution. The…

Q: what would be the most appropriate probability distribution for each of the following random…

A: The probability distribution use to find probability of any random variable.Probability distribution…

Q: Conversely, if a table of x and p(x) values is provided (with no constant n and p). What calculator…

A: A probability distribution is given with x and P(x) values.

Q: For each situation given below, do the following: A) Decide if the random variable is Poisson (or…

A: The probability mass function of the Poisson distribution is given as follows:

Q: A rainstorm in Veracruz, Veracruz, wiped out the electricity in 10% of the households in the city.…

A: Let X represent the random variable   n=70 p=0.1   X~ Binomial (70, 0.1)

Q: are color blind  None are color blind Exactly 2 men are co

A: Let, X= number of men are color blind . It is given that the color blindness affects about 8% of…

Q: You know that 0.90 is the probability of seeing a guy with a blue shirt. Suppose that you see three…

A:

Q: girls in 8 births. E Click the icon t view the data table. The mean is u= girl(s). (Round to one…

A: Given that Probability distribution table X 0 1 2 3 4 5 6 7 8 P(x)  0.006 0.031 0.114 0.212…

Q: es are randomly selected with replacement. *** After listing the possible samples and finding the…

A: Given A genetics experiment involves a population of fruit flies consisting of 1 male named Albert…

Q: Who is the king of late night TV? An Internet survey estimates that, when given a choice between…

A:

Q: Suppose the average client charge per hour for out-of-court work by lawyers in Saskatchewan is $125.…

A: Given that, σ2=525,n=32μ=125 The standard deviation is, σ=σ2  =525  =22.91287847 The probability of…

Q: Solve this for me.

A: The objective of this question is to estimate the number of households that lost electricity in a…