12 13 14 15 16 Suppose the continuous random variable X-U (4, 15). Find the following....
11. Discrete or continuous. 12. Explanatory variable 13. Response variable 14. Stratified sample 15. Cluster sample 16. Systematic sample 17. Convenience sampling 18. Population 19. Simple Random Sampling : 20. Inferential statistics
Suppose that a random variable X is continuously uniform between the values of 4 and 15. Find the mean of the distribution of the sample mean of a random sample of size 46. Round your answer to two decimal places.
Suppose that a random variable X is continuously uniform between the values of 3 and 12. Find the variance of the distribution of the sample mean of a random sample of size 32. Round your answer to four decimal places.
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12. (15 points) Let X be a continuous random variable with cumulative distribution function 0. F(x) = Inc. <a a<x<b bcx 1. (a) Find the values of a and b so that F(x) is the distribution function of a continuous random variable. (b) Find P(X > 2). (c) Find the probability density function f(x) for X. (d) Find E(X)
Suppose that X is a continuous random variable with probability
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Suppose that X is a continuous random variable with probability distribution O<x<6 18 (a) Find the probability distribution of the random variable Y-10X 3. fr o) 2 Edit for Sy s (b) Find the expected value of Y
12. (15 points) Let X be a continuous random variable with cumulative distribution function **- F() = 0, <a Inx, a < x <b 1, b<a (a) Find the values of a and b so that F(x) is the distribution function of a continuous random variable. (b) Find P(X > 2). (c) Find the probability density function f(x) for X. (d) Find E(X)
12. (15 points) Let X be a continuous random variable with cumulative distribution function 0, <a Inz, a<<b 1, bsa (a) Find the values of a and b so that F(x) is the distribution function of a continuous random variable. (b) Find P(X > 2). (c) Find the probability density function S(x) for X. (d) Find E(X)
12. (15 points) Let X be a continuous random variable with cumulative distribution function 0, <a F(x) = Inr, asi<b 1, bsa (a) Find the values of a and b so that F(x) is the distribution function of a continuous random variable. (b) Find P(x > 2). (c) Find the probability density function f(x) for X. (d) Find E(X)
Suppose x is a normally distributed random variable with 13 and Find each of the following probabilities Click here to view a table of areas under the standardized normal curve. a. P(x 2 14.5)-(Round to three decimal places as needed) b. P(x s11)=L 1 (Round to three decimal places as needed.) c. P(13 66ss 17.8)= ] (Round to three decimal places as needed) d. P(7.96 srs 15 44)= (Round to three decimal places as needed.) Enter your answer in each...
Suppose that a random variable X is continuously uniform between the values of 4 and 9. Find the variance of the distribution of the sample mean of a random sample of size 37. Round your answer to four decimal places.