Mathematics, 04.06.2020 20:01 jen12abc82
At City Community College, every freshman must take Communications 101. The communications department wants to know whether students who take this class in their second semester get better grades than students who take the class in their first semester. Which principle of experimental design can the communications department best use to include a variety of students in both the first and second semester treatment groups of the study?
A.
Randomization
B.
Direct control
C.
Replication
D.
Blocking
Answers: 3
Mathematics, 21.06.2019 17:00
Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
Answers: 1
Mathematics, 21.06.2019 18:00
List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°
Answers: 1
Mathematics, 21.06.2019 18:30
Three times the sum of a number and seven is negative thirty-six. what is the number?
Answers: 2
Mathematics, 21.06.2019 19:40
Graph y = -|x| + 2. click on the graph until the correct one appears.
Answers: 3
At City Community College, every freshman must take Communications 101. The communications departmen...
Mathematics, 06.11.2019 09:31
Physics, 06.11.2019 09:31
Biology, 06.11.2019 09:31
Biology, 06.11.2019 09:31
Mathematics, 06.11.2019 09:31
Mathematics, 06.11.2019 09:31
History, 06.11.2019 09:31
Mathematics, 06.11.2019 09:31
Health, 06.11.2019 09:31
Arts, 06.11.2019 09:31
Mathematics, 06.11.2019 09:31
Biology, 06.11.2019 09:31
Mathematics, 06.11.2019 09:31