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Let X follows a binomial distribution with mean equals .55 and standard deviation equals .7228. Find n and p
A truck repair facility has room to work on 5 trucks at a time. The company has 50 trucks out in the field eah day. The probability of any truck breaking down is 10%. What is the likelihood that mor
The value of Twitter has been growing exponentially at a rate of 150% a year. If the company was worth $0.5 million in 2010, during what year will Twitter become worth $10 billion?
How big does the return have to be to put a domestic stock fund in the top 10% for the three-year period (to 2 decimals)?
Discuss the data that the graph is used to visually represent. Speculate on why the editor chose the graph, as opposed to merely reporting the data.
Two chips are chosen at random from a box containing 8 blue, 4 green, and 2 orange chips. We win $2 for each green chip Selected and we lose $1 for each blue chip selected. Let X donate our winnings
A sample of 100 families was drawn for analysis of the average grocery spending. Assume that the individual weekly expences are normally distributed, with the unknown population average and populati
Write Q as a linear function of t. What is the slope? What does it tell you about the trend of Quaker Parrots in Austin? Now, rewrite Q as an exponential function of t. What is the growth rate? What
Give the equation for the standard deviation of a random variable X over an entire population with probability mass function f(x) and with a known μ.
Give the equation for the standard deviation of a sample drawn from a population with a known mean µ. Give the equation for the standard deviation of a sample drawn from a population with unknow
According to one study that looked at the percent of left-handed people by state, 11.6% of people in Indiana are left-handed. You survey 15 Indiana residents at the state fair and ask whether they a
Define F in terms of the story and name the distribution and its parameters. What is the expected number of people in his sample that have toe-nail fungus?
Let A be the number of rounds until Lionel wins his first stuffed animal. What is the distribution and parameters of A? Also, find the expected value and variance of A.
Find the probability that he gets at least 3 emails on a particular day? What is the standard deviation of the number of emails that Tim gets in one day?
Compute the mean of the sample means and compare it to the population mean. (Round your answers to 1 decimal places.)
What is the distribution and parameters of S? What is the support? What is the probability that worker fills his quota on the 125th person that he asks to complete the survey? What is the probability
Give the equation for the standard deviation of a random variable X over an entire population with probability mass function f(x) and with a known µ
A production process for parts made by a supplier have a historical defect rate of 1%. A sample of 20 parts is taken. What distribution should you use? Find the probability that 2 of the 20 parts se
Construct a histogram from the following data using 8 bins that exactly cover the range: 5, 12, 6, 29, 19, 24, 29, 18, 28, 16, -10, 15, 23, -3, -8, 28, 16, 28, 28, 0.
From a high school with 40 freshman, 38 sophmore, 35 juniors, and 30 seniors, a random sample of 8 students is taken without replacement. What distribution should be used? What is the probability t
In a remote tropical region, there is a direct road from A to B but it is impassable about 50% of the time due to rain. An alternative route passes through a third location C. Suppose the road from
What are sampling techniques and discuss about sampling techniques? Write sources from where you have got the answer(mandatory)
What is the probability that a response time exceeds 9 minutes. Compute the top 10 th percentile for response times?
A couple plans to have three children. assuming that each child is equally likely to be a boy or girl, find the probability distribution of the number of girls among the three children. Then find th
A bookshelf contains 20 textbooks for different subjects. Among those, 10 of them are used ones, and 10 of them are brand new. You select 2 books and sell one at a time on Oct 11, and Oct 12.