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1. A research company stated that 20% of missed school days are due to asthma. If a group of 400 school children are selected at random, what is the probability that at most 60 will miss school because of asthma?
2. Suppose that in one small town the average income is $34,200 with a stansard deviation of $2200. What percent of housholds between $29,800 and $38,600?
q1. following are the total scores of three subjects of seventy four year 8 students from a highschool.10nbspnbsp 1 4 6
test null hypothesis: Meu=80 against alternative hpothesis=negative = 80 (alpha =.05). What does this tell you about meu?
Which of the following statements regarding the coefficient of correlation is true. A value of 0.00 indicates two variables are not related.
A newspaper finds that the mean number of typographical errors per page is five. Find the probability that:
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
If the probability of a newborn child being female is 0.5, find the probability that in 100 births, 55 or more will be female. Use the normal distribution to approximate the binomial distribution.
question a sample of 12 funeral homes in ohio found these costs for cremation320152190285570995585820195160590150find
A binomial experiment has 10 trials with a probability of success of 0.62 in each trial. What is the standard deviation of the binomial random variable?
From experience he knows that he can go another 15 miles. What is the probability that he will be stranded on the highway without gasoline?
X is a random variable that represents ph of arterial plasma, the mean of the x distribution is 7.4. a random sample of 31 patients with arthritis took the drug for 3 months blood test
Provided an example of a research problem at any organization that would benefit from the employ of either descriptive statistics or probability distribution statistics.
Almost 20% of the stratum was sampled compared to the second stratum where only 2% of the stratum was sampled. Will this phenomenon introduce bias into the above estimates?
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