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1. Suppose that we draw one card from a deck of 52 playing cards. What is the probability that the card will either be a king or a heart?
a.) .019
b.) .250
c.) .308
d.) .327
2. The table below describes the smoking habits of a group of asthma sufferers:
Nonsmoker Light Smoker Heavy Smoker Total
Men 344 61 77 482
Women 374 74 62 510
Total 718 135 139 992
If one of the 992 subjects are randomly selected, find the probability that the person chosen is a nonsmoker given that it is a woman. Round to the nearest thousandth.
a.) .414
b.) .521
c.) .377
d.) .733
Find the z-score for each score in the population. Transfer the original population into a new population of N=5 scores with a mean of μ=60 and a standard deviation of σ=8
When there is more than two predictors, one can no longer graph the tted surface in the usual way. How then does one make sense of a surface in more than three dimensions?
A nutritionist conducted an experiment on memory for dreams. She wanted to test whether it really was true that eating cheese before going to bed made you have bad dreams. Over three nights, the nutritionist fed people different foods before bed.
a coin is tossed until obtainning a head or tossing it up to three times whatever happens first. if x represent the
statistics - degrees of freedom independent two sample test?a independent two-sample test with n134 and n242 would have
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The explanatory variable which is a measure of neighborhood socio-economic status variable RFM. Response variable is percent (%) of bicycle riders that wears a helmet.
A small town has a population of 20,000 people. Among these, 1,000 regularly visit a popular local bar. A sample of 100 people who visit the bar is surveyed for their annual expenditures in the bar.
Of the next 15 people that invest in this project, what is the probability that 5 or less people will result an annual net cash flow of at least $100,000.
Share 1 real-world binomial distribution situation and 1 real-world Poisson distribution situation. Be sure to explain why each example is defined as binomial or Poisson.
Plot the data on fruit and vegetable consumption. Discuss the underlying causes that might explain the trend or pattern. Fit a linear trend to the data.
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