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Let X be a continuous random variable with density fx(s) = k(s-6) for s = 1 and fx(s) = 0 for s
a) Determine the value of the constant k.
b) Calculate E[X].
c) Calculate VAR[X].
d) Calculate P(X e [-2, -0.75]).
e) Calculate P(X e [2,3]).
Determine the probability that gas tank's capacity is above 15.25 gallons?
State the hypotheses for a right-tailed test. Obtain a test statistic and p-value assuming unequal variances. Why might the sample data not follow a normal, bell-shaped curve? If not, how might this affect your conclusions?
Use relative frequencies to estimate the probability that a seed will not germinate. What is your estimate? Use relative frequencies to estimate the probability that a seed will not germinate.
According to the Chebyshev rule, at least what percentage of the observation in any data set are contained within a distance of 3 standard deviations around the mean.
Use the frequency chart on the age of actors and when they won a prestigious award and construct a corresponding histogram.
Assume that the measurements came from a normal distribution. The variability of the manufacturing process is unknown means the same as the standard deviation is unknown.
British scientists have developed a 15 minute brain scan they hope could be used to detect autism in children. Autism and related disorders affect up to 7 out of every 1000 individuals.
professor green gives two-month computer programming courses during the summer term. students must pass a number of
Find the empirical probability that an iris bulb of this type will bloom. Give answer as a fraction in lowest terms. How many of the bulbs should she plant next fall if she would like at least 52 to bloom?
How would a decrease of $1 in the x1 coefficient of the objective function affect the optimal values of the decision variables?
hypothesis test for dependent samples.a survey of 50 clientsin january 08 fifty clients of a county mental health
What percent of the sample means will be greater than 135 but less than 148 seconds? (Round your answer to 2 decimal places.)
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