Which of the following would produce valid inferences when sampling a population?
A. Onl...
Mathematics, 15.05.2020 06:57 Jasten
Which of the following would produce valid inferences when sampling a population?
A. Only include the first people in the population that are available to participate in the survey
B. Only conduct written surveys
C. Randomly select participants
D. only accept voluntary responses
Answers: 3
Mathematics, 21.06.2019 18:00
Solve this system of equations. 12x − 18y = 27 4x − 6y = 10
Answers: 1
Mathematics, 21.06.2019 18:20
What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)
Answers: 2
Mathematics, 22.06.2019 02:50
Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.
Answers: 2
Mathematics, 22.06.2019 03:00
In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. consider the data set 14, 6, 8, 15, 15. (a) use the defining formula, the computation formula, or a calculator to compute s. (round your answer to one decimal place.) s = 4.28 (b) multiply each data value by 3 to obtain the new data set 42, 18, 24, 45, 45. compute s. (round your answer to one decimal place.) s = 12.83 (c) compare the results of parts (a) and (b). in general, how does the standard deviation change if each data value is multiplied by a constant c? multiplying each data value by the same constant c results in the standard deviation remaining the same. multiplying each data value by the same constant c results in the standard deviation being |c| times as large. multiplying each data value by the same constant c results in the standard deviation increasing by c units. multiplying each data value by the same constant c results in the standard deviation being |c| times smaller. (d) you recorded the weekly distances you bicycled in miles and computed the standard deviation to be s = 3.8 miles. your friend wants to know the standard deviation in kilometers. do you need to redo all the calculations? yes no given 1 mile ≠1.6 kilometers, what is the standard deviation in kilometers? (enter your answer to two decimal places.)
Answers: 1
Physics, 30.01.2020 05:43
Social Studies, 30.01.2020 05:43
Mathematics, 30.01.2020 05:43
Advanced Placement (AP), 30.01.2020 05:43
Mathematics, 30.01.2020 05:43
Mathematics, 30.01.2020 05:43
Chemistry, 30.01.2020 05:43
Mathematics, 30.01.2020 05:43
Mathematics, 30.01.2020 05:43
Chemistry, 30.01.2020 05:43
History, 30.01.2020 05:43