Mathematics, 18.11.2020 03:20 leo4687
Mr. Parry needs two students to help him with a science demonstration for his class of 18 girls and 12 boys. He randomly chooses one studentto come to the front of the roomand remain there. He then chooses a second student from those still seated. What is the probability that both students chosen are girls?
Answers: 2
Mathematics, 21.06.2019 22:10
Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.
Answers: 3
Mathematics, 21.06.2019 23:30
Which term applies to agb and dge? a. obtuse b. supplementary c. complementary d. vertical
Answers: 1
Mathematics, 21.06.2019 23:50
Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.
Answers: 3
Mathematics, 22.06.2019 02:20
Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test
Answers: 2
Mr. Parry needs two students to help him with a science demonstration for his class of 18 girls and...
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