Mathematics, 30.11.2019 06:31 acamjackie25561
The random variable x is normally distributed with mean 5 and standard deviation 25. the random variable y is defined by y = 2 + 4x. what are the mean and the standard deviation of y ? the mean is 20 and the standard deviation is 102.
a) the mean is 20 and the standard deviation is 50.
b) the mean is 22 and the standard deviation is 102.
c) the mean is 22 and the standard deviation is 100.
d) the mean is 22 and the standard deviation is 50.
Answers: 3
Mathematics, 21.06.2019 23:50
Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas
Answers: 3
Mathematics, 22.06.2019 02:00
If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.
Answers: 3
Mathematics, 22.06.2019 03:00
Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?
Answers: 2
The random variable x is normally distributed with mean 5 and standard deviation 25. the random vari...
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