Which of the following methods of sampling is an example of a stratified random sample? A. Randomly choosing a name from a list of names in the population and then choosing every tenth name thereafter. B. From 500 names of members of a population in a hat drawing 50 names from the hat without looking. C. Dividing a target population of students by grade level and choosing the first 25 names from each group. D. Dividing a population of adults into males and females and randomly choosing a sample proportional to the numbers in each group.

Abc will undergo two transformations to give aa'b'c' which pair of transformations will give a different image of aabc if the order of the transformations is reversed? a. a rotation 90' counterclockwise about the origin followed by a reflection across the y-axis b a translation 5 units down followed by a translation 4 units to the right c. a reflection across the x-axis followed by a reflection across the y-axis a rotation 180'clockwise about the ongin followed by a reflection across the y-axis reset next 2 omentum all rights reserved o atk me anything o o e

Order the equations from least to greatest based on the number of solutions to each equation.-4^x -1 = 3^(-x) – 2 -3x + 6 = 2^x+13^x – 3 = 2x - 2

Astudy of 80 english composition professors showed that they spent, on average, 14.6 minutes correcting a student's term paper. construct and interpret a 90% confidence interval of the mean time for all composition papers. assume that the population standard deviation is 2.9 minutes. round to 1 decimal.