Mathematics, 19.05.2021 05:10 RicoGonza
A population is normally distributed with a mean of 15.1 and a standard deviation of 1.4. A sample of size 21 is taken from the population.
What is the the standard deviation of the sampling distribution?
Round to the nearest thousandth.
Answers: 3
Mathematics, 21.06.2019 20:00, CelesteN64
For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.
Answers: 1
Mathematics, 21.06.2019 20:10, sawyerharper
Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b
Answers: 3
Mathematics, 22.06.2019 00:00, lllamasarebae5995
I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?
Answers: 1
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