In the context of designing control charts, which of the following is true of a sample size? a. A large sample allows small changes in process characteristics to be detected with higher probability than a small sample size. b. A small sample is used to detect process shifts of two standard deviations or smaller. c. A large sample size is desirable to keep the cost associated with sampling low. d. A small sample size provides greater degrees of statistical accuracy in estimating the true state of control than a large sample size.

It comes out of vehicles which pollutes the air

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c