Mathematics, 06.08.2019 03:30 dion27
The random variable x has the following probability distribution: x f(x) 0 .25 1 .20 2 .15 3 .30 4 .10 a. is this probability distribution valid? explain and list the requirements for a valid probability distribution. b. calculate the expected value of x. c. calculate the variance of x. d. calculate the standard deviation of x.
Answers: 3
Mathematics, 21.06.2019 17:00
100 points, hi, i’m not sure how to get the equation from the graph and table.
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Mathematics, 21.06.2019 19:00
Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.
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Mathematics, 21.06.2019 20:30
choose the correct definition for extremo. a. end b. extra c. extract d. eventual
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Mathematics, 21.06.2019 22:00
Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis
Answers: 1
The random variable x has the following probability distribution: x f(x) 0 .25 1 .20 2 .15 3 .30 4...
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