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Consider the experiment of drawing two cards from a shuffled deck and then putting them back. What is the probability that no more than 3 applications of this experiment will yield a heart and a diamond?
The Appliance Centre sells a variety of electronic equipment and home appliances. For the last four years the following quarterly sales (in $ millions) were reported.
should you use a binomial distribution? please give a reason for your answer. in a random sample of students x is the
reginald brown an inspector from the department of weights and measures weights 15 eighteen ounce cereal boxes of corn
What is the probability that a call lasted between 180 and 300 seconds? What is the length of a call if only 1% of all calls are shorter?
State the null and alternative hypotheses needed to attempt to establish that the advertisement increases the mean attitude score
We forecast that 20% of group 1 and 30% of group 2 will experience outcome. If we recruit the equal number of individuals in each of the groups, how many individuals do we need to study?
How can the company do this and obtain independent samples? Explain in detail
Normally distributed with a mean of $ 1750 and a standard deviation of 300. What's the probability that a randomly selected state has a per capita GNP at or below $950?
a recent study focused on the number of times men and women send a twitter message in a day. the information is
explain what problems arise in trying to make conclusions based on a survey mailed to the subscribers of a specialty
Assume the sample is taken from a normally distributed population. Construct 98% confidence intervals for (a) the population variance o2 and (b) the population standard deviation.
A statistician wants to estimate the mean weekly family expenditure on clothes. He believes that the standard deviation of the weekly expenditure is $125.
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