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Answer the following and provide solution for each:
1. Four coins are tossed. What is the probability that they are all heads or all tails?
2. Two dices are rolled. What is the probability that the 2 faces of the dice show numbers that add up to 9?
3. In choosing a positive integer between 100 and 999 inclusive, what is the probability of choosing a positive integer not divisible by 4?
4. When a die is rolled, what is the probability of getting a 2 or a prime number?
5. Two dice are rolled. What is the probability that the 2 faces of the dice show numbers that add up to 8 or 9?
What is the 95% confidence interval estimate of the mean television viewing time per week during the 8:00 p.m. to 11:00 p.m. time period?
A population is composed of 100 items arranged in some order. Every stratum of 10 items in the order of arrangement tends to be similar in its values.
Cancer testing The study described in Problem also revealed that 91% of the men for whom the PSA test was negative do not have prostate cancer.
For the uniform distribution over the interval -3 to 2, determine (a) P(X ≤ 1), (b) P(X 0), (d) P(-1.2 ≤ X ≤ 1), (e) P(X = 1).
What is an example that shows the application of correlation or regression in any area of interest? How is correlation or regression was used
a manuscript is sent to a typing firm consisting of typists a b and c. if it is typed by a then the number of errors
The president of Doerman Distributors, Inc., believes that 27% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers.
At the end of the year, patients were diagnosed as healthy or relapsed, as summarized in the table:- Do these results provide evidence that Prozac might be helpful in treating anorexia? Explain.
A large college class has 160 students. All 160 students attend the lectures together, but the students are divided into 4 groups
How would I construct a? 95% confidence interval about the slope of the true? least-squares regression line shoeing the Lower and Upper Bound?
In a sample of 1200 police officers, the mean annual salary was $33,000 and the standard deviation was $3200. A random sample of size 70 is drawn from this population. What is the probability that the mean annual salary is between $32,000 and $32,..
Establish a 95 percent confidence interval about the difference between the two means, and write an interpretation that includes a statement about the fate of the null hypothesis when a =.05.
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