Aresearcher conducting a telephone survey is concerned about possible sources of bias. of the following, which is the best example of nonresponse bias? the wording of the questions in the survey leads people to respond in a certain way.
a. the behavior of the interviewer leads people to respond in a certain way.
b. people might be uncomfortable with the survey questions and, as a result, might not always respond to those questions truthfully.
c. many of the people selected to participate in the survey who do not respond might have opinions different from those who do respond.
d. people without telephones are overlooked in the sampling procedure used to determine who is surveyed.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?

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 > ?