Mathematics, 29.04.2021 17:10, Faithmel
In which sampling method is the sample selected from the population according to a specific item or time interval?
A) convenience sample
B) simple random sample
C) stratified random sample
D) systematic random sample
Answers: 3
Mathematics, 21.06.2019 21:40, calebhoover03
Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000
Answers: 2
Mathematics, 21.06.2019 22:00, goodperson21
White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.
Answers: 2
Mathematics, 21.06.2019 23:10, jaylenmiller437
Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (β4, 0) and (6, 0). the y-intercept of the first parabola is (0, β12). the y-intercept of the second parabola is (0, β24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth
Answers: 2
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