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According to the American Lung Association, 90% of adult smokers started smoking before turning 21 years old. Ten smokers 21 years old or older are randomly selected, and the number of smokers who started smoking before 21 is recorded.
A- Explain why this is a binomial experiment.
B- Find & interpret the probability that exactly 8 of them started smoking before 21 years of age.
C- Find & interpret the probability that fewer than 8 of them started smoking before 21 years of age.
D- Find & interpret the probability that at least 8 of them started smoking before 21 years of age.
E- Find & interpret the probability that between 7-9 of them, inclusive, started smoking before 21 years of age.
Compute standard normal z-score corresponding to value of x = 23. e. Determine P(x 23). G. Determine P(16
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A data source generates hexadecimal characters. Let X be the integer value corresponding to a hex character. Suppose that the four binary digits in the character are independent and each is equally likely to be 0 or 1.
Canceled on the day of the flight is (1.2%,4.5%). What is the point estimate of the mean percentage of reservations canceled on the day of the flight?
The linear correlation coefficient, r, measures the strength of the linear relationship the variables in a set of ordered pairs (x,y). What is the maximum and minimum values for r?
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list the steps you would follow to determine the reliability of the exam. about 100 students will take this exam. the
Calculate the expected value and standard deviation of the value.
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