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The following table gives the probability distribution of a discrete random variable x.
x 0 1 2 3 4 5 6P(x) .11 .19 .28 .15 .12 .09 .06
Find the following probabilities.
a) P(1≤x≤4)
b) Probability that x assumes a value less than 4.
c) Probability that x assumes a value greater than 2.
Calculate the row percentages in the table. In a few sentences, describe the relationship between type of drinker and the personal definition of binge drinking.
a fair coin is tossed independently five times i.e. pheads ptails 0.5what is the probability ofa all headsb no headsc
Use the data in Problem 1 and develop a regression model to predict selling price based on the square footage and number of bedrooms. Use this to predict the selling price of a 2,000-square-foot house with 3 bedrooms.
In the prime factorization of an integer, what is the maximum number of prime factors greater than the square root of that integer? If there is a prime factor greater than the square root of that integer
A machine produces 5-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows: State the null and alternate hypotheses. Calculate the mean and standard deviation.
How does a t test differ from a z test in terms of when it is used, how it is calculated, and how we determine significance?
Because of the difficulty of weighing a bear in the woods, researchers caught and measured 54 bears, recording their weight, neck size, length, and sex. They hoped to find a way to estimate weight from the other, more easily determined quantities.
For each customer, it records name, ID number, region of the country (1 = East, 2 = South, 3 = Midwest, 4 = West), date of last purchase, amount of purchase, and item purchased.
Same survey showed that average length of time each store was in bbusiness is 6 years, with standard deviation of 25 years. Which is more variable, number of magazines or number of years.
What manifest variables were used to operationalize social disorder? Based on these manifest variables, explain in your own words what you think the authors mean by "social disorder."
What is the probability that both cards dealt are aces or 10-point cards? What is the probability that both of the cards are aces?
Find a 90% confidence interval for the population mean weight of all such turtles.
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