The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e always come together?

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A: Mean is a measure of central tendency. It is the average value of a set of observations. For a set…

Q: Given  the MGF of X is MX(t)=(0.90+0.10et)10MX(t)=(0.90+0.10et)10 .  Clearly; i)   Find the…

A: Solution: Given MGF is  MX(t)=(0.90+0.10et)10

Q: what calculations do I do if given excel data

A: Let us understand the Hypothesis Testing for the Difference between Two Population Means…

Q: 12:04 4G.7% A binomial probability experiment is conducted with the given parameters. Compute the…

A: This is a example example of Binomial distribution.  Parameters of given binomial distribution are,…

Q: Question 16 > A population of values has a normal distribution with μ sample of size n = 200. = 81…

A: Given  Population mean μ=81, standard deviations σ=53.8, sample size n=200

Q: Researchers were interested in assessing the effects of a new treatment on seasonal affective…

A: Given: The independent variable is subject. The dependent variables are 0 weeks, 2 weeks and 4…

Q: Marie is getting married tomorrow, at an outdoor ceremony in the desert. In recent years, it has…

A: From the provided information, the following are inferred: As it rains only 5 days each year, the…

Q: An article gave the following summary information for fracture strengths (MPa) of n = 196 ceramic…

A: Givensample size(n)=196Mean(x)=47.78standard deviation(s)=3.85

Q: not type it ASAP. thanks

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Q: In the past, when elementary school children in a large city were screened, 25% were found to have…

A: The question is about hypo. testing Given : Popl. prop. of children found to have auditory defects (…

Q: hown below is a portion of a computer output for regression analysis relating y (dependent variable)…

A: Solution:  Given information:  b1=-0.566  slope ofthe regression equation S.E(b1)= 0.301  standard…

Q: Marie is getting married tomorrow, at an outdoor ceremony in the desert. In recent years, it has…

A: As Prof. N. G. Das said "Let A1, A2, ... , An be n mutually exclusive and exhaustive events with…

Q: An annual survey of first-year college students asks 270,000 students about their attitudes on a…

A: first of all we have to construct null and alternative hypotheses as follows we know that null…

Q: The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0…

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Q: According to a poll, 11.55% of adults in a certain country have diabetes. Suppose a researcher…

A: given data  in a country P(diabetes) = p = 0.1155 n = 122 x = 18 E(x) = ? if p = 0.1155

Q: A binomial probability experiment is conducted with the given parameters. Compute the probability of…

A: Solution-: Given: n=40,p=0.05,x=2 We want to find P(2)=?

Q: candidate for public office is believed to have the support of 60% of voters. Assume the number of…

A: Let the R.V X denotes the number of people who support the candidate and it follows the binomial…

Q: A room contains 3 brown, 5 black and 4 white chairs. Two chairs are picked and are put in the lawn.…

A: Given that  Total chairs = 3 + 5 + 4 = 12 Two chairs are picked and put in the lawn

Q: Meteorologists in Texas want to increase the amount of rain delivered by thunderheads by seeding the…

A: Given that  Sample size n=30 Population mean=300

Q: At an electronics firm, it is known from past experience that the probability a new worker who…

A:

Q: Two new drugs were given to patients with heart disease . The first drug lowered the blood pressure…

A: Given: Two new drugs were given to patients with heart disease . The first drug lowered theblood…

Q: In preparing a report on the economy, we need to estimate the percentage of businesses that plan to…

A:

Q: Example 1 Suppose we conduct a simple statistical experiment. We flip a coin one time. The coin flip…

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Q: Suppose you are testing the hypotheses  H0:μ=10 and Ha:μ≠10, and the p−value is 0.06. Would a 90%…

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Q: b. Find the number of students who were surveyed. Total = 160 students c. Shade the set (FUM) OB'.…

A:

Q: 4. If X and Y are independent random variables and U = X + Y, complete the proof that the cumulative…

A: Given that X and Y are independent random variables and U=X+Y.

Q: Find the probability of selecting 2 woman when four persons are choosen at random from a group of 3…

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Q: n order to estimate the proportion of women over 50 who have annual mammograms with a 95% confidence…

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Q: Question 13 < A certain kind of sheet metal has, on average, 4 defects per 13 square feet. Assuming…

A: Solution: Let X be the number of defects per 13 square feet.  The average number of defects per 13…

Q: What is the class expected and chi square

A: Given information:   Black Chocolate Yellow Total Class puppies, Oi 86 27 27 ∑Oi=140…

Q: A poll of 2,198 randomly selected adults showed that 86% of them own cell phones. The technology…

A: given data  n = 198 p^ = 0.86 α = 0.05 we had given technology answer.  using it we have to give…

Q: In the context of regression analysis, which of the following statements are true? I. A linear…

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Q: A sleep disorder specialist wants to test the effectiveness of a new drug that is reported to…

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Q: researcher was interested in the mean corn yeild for farmers in Illinois. She took an SRS of 28…

A: Given that  Margin of error =E =3.5 Population standard deviation =13.25 95% confidence level.

Q: One research study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from…

A: A random sample of 1053 students in which 95 report using illegal drugs.

Q: d the probability that when a couple has five children, at least one of them is a girl. (Assume that…

A: A couple can only give birth to either a girl or a boy. Now, we are told that boys and girls are…

Q: A random sample of n₁ = 276 people who live in a city were selected and 112 identified as a "dog…

A: given data n1 = 276  x1 = 112p^1 = x1n1 = 112276 = 0.4058       n2 = 117  x2 = 70p^2 = x2n2 = 70117…

Q: selected a bag of colored candies. He counted the number of candies of each color and obtained the…

A: Solution: Given information: k=6 Categories  Proportion of brown= p1 = 0.13  Proportion of yellow…

Q: SMALLEST = .0567 ||| ||| 8 125 20 = .056 = .05670 LARGEST

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Q: Suppose a life insurance company sells a $280,000 one-year term life insurance policy to a…

A: From given data we have : P(Female survives)=0.999514 P(Female not survives)=1-P(Female…

Q: 9.83 Toxic Mushrooms? Cadmium, a heavy metal, is toxic to ani- mals. Mushrooms, however, are able to…

A: The given sample size is 12, sum of the samples is 6.31, population standard deviation is 0.37.

Q: Question 1 Giving a test to a group of students, the grades and gender are summarized below B с 3 10…

A: Given Total number of students=62

Q: b. Compare the mean of the population to the mean of the sampling distribution of the sample mean.…

A: C. Target        Do       An unbiased estimator.

Q: Let X be the resting heart rate of a physically fit man. Assume that the resting heart rate for fit…

A: Let X be the resting heart rate of a physically fit man. Assume that the resting heart rate for fit…

Q: discuss three pros and three cons of using simple regression to forecast data

A: In simple linear regression, there are 2 variables. One is dependent and another is independent…

Q: If a page is selected, find the probability that it has 2 misprints. Round the probability to at…

A: Mean  λ=270430  =0.6279

Q: In a study of 787 randomly selected medical malpractice lawsuits, it was found that 482 of them were…

A: given data clim : p &gt; 0.50n = 787x = 482

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: given data, we have to find out the given probability for the given data, one order is selected…

Q: Consider a sample of 51 football games, where 29 of them were won by the home team. Use a 0.10…

A: given data, n=51x=29p^=xn =2951 =0.5686α=0.10claim that the probability that the home team wins is…

Q: he average amount of time in individual stopped by the police officers by the time they are 30 years…

A: The summary of the statistics is, x¯=6σ=1.2μ=5n=25 Assume the level of significance is, α=0.05