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The mean height of 8 year old girls in my daughter's school is 125 cm, with a standard deviation of 0.3, and the height has a bell-shaped distribution
What is the approximate percentage of girls between 124.4 cm and 125.6 cm?
What is the approximate percentage of girls between 124.1 cm and 125.9 cm?
The objective is to maximize the expected net return. Define the optimal value function and give the optimality equation. Find the optimal policy.
Do we have to worry about confounding variables in this instance? Why? If so identify a possible confounding variable? Are either of the terms retrospective study or prospective study relevant? Explain.
there are 8 cds in a rack 5 are jazz and 3 are classic rock. two cds are selected at random one after the other with
Historically, it is known that the score has a Normal distribution and a standard deviation of 180. Set up the null hypothesis and the alternative hypothesis. Calculate the test statistic and find the p-value.
Find the probability that student A made no mistakes when entering a randomly selected form. Find the probability that student B made no mistakes when entering a randomly selected form.
Assuming that the manager's claim is correct, calculate the probability that 117 or fewer of 205 randomly selected marketing researchers would disapprove of the scenario.
When we have several criteria with different scale, for ranking can we add values after standardization? for exaample for ranking websites we have number of visitors and page load time and size and.
consider a random sample of size n from a bernoulli distribution xi bin1p. for a uniform prior density p unif01 and
How large should n be so that Chebyshev's inequality guarantees that the estimate is within 5 centimeters from h, with probability at least 0.99?
A tailor makes wool tweed sport coats and wool slacks. He is able to get a shipment of 150 square yard of wool cloth from Scotland each month to make coats and slacks
Suppose you study a random sample of 100 GRE verbal exams. Consider your a sketch of the sampling distribution of sample means and the appropriate calculation model.
a coin is tossed repeatedly until either tails appears or heads has appeared four times whichever comes first. find the
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