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1. Find the joint p.d.f. of the signal from Exercise 8.5.1 at t1 = 1, t2 = 1.5, and t3 = 2.5. Write the integral formula for P(0 ≤ X(1) ≤ 1, -1 ≤ X(1.5) ≤ 3, 0 ≤ X(2.5) ≤ 2).
Evaluate the above probability numerically.
2. Show that if a 2D Gaussian random vector Y- = (Y1, Y2) has un- correlated components Y1, Y2, then those components are statistically independent random quantities.
How large a sample must he select if he wants to be 99% confident that the true average time is within 15 minutes of the sample average? Assume the standard deviation of all times is 30 minutes.
When n = 250, determine the probability that proportion of couples in sample who are racially or ethnically mixed will be greater than 0.07?
industry standards suggest that 7 percent of new vehicles require warranty service within the first year. jones niussan
If 20 customers were selected at random during one business day, what is the probability that at least 11 of them did not order a pastry with their drink.
The National Center for Education Statistics reported that 47% of college students work to pay for tuition and living expenses. Assume that a sample of 450 college students was used in the study.
When 500 college students are randomly selected and surveyed, it is found that 135 of them own personal computers (based on data from the America Passage Media Corporation).
Assume that two samples are independent simple random samples selected from normally distributed populations. Use a 0.05 significance level to test the claim that male and female biology students speak the same mean number of words in a day.
do the calculations. Show all your steps. P(B/A) = P (B1/A1) * P (B2/A2) * P(B3/A3). Evaluate the employer's knowledge of his/her employees.
Using the ten sample-mean values, estimate the mean of the population and the variance of x .
how does our worldview shape and filter our concepts thoughts beliefs and actions dealing with our relationships and
Determine whether there are differences in the means of the number of cereal leaf beetles, in terms of colour preference, based on the numbers trapped on the different coloured boards.
Please help me with the following 3 problems. There are only a few that I can't seem to figure out. Please use excel and show me a step by step solution to give me a full understanding. Thanks a lot!
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