Mathematics, 05.03.2021 22:00 Cartucho1978
Mrs. Redline teaches Exploratory Topics and wanted to help her students excel on the upcoming midterm exam. She decided to test the hypothesis that completing the review packet will cause higher grades on the midterm exam. She decided to conduct an experiment. Her 3rd period class worked on the review packet during class, getting help when needed. Her 4th period class was not given a review packet. Her 2nd period class was asked to complete the review packet for homework, as previously assigned. Afterward, Mrs. Redline compared the midterm exam grades for each class. What was the control group?
A) All classes were a control group
B) All classes were a placebo group
C) Classes receiving the packet were a control group because she controlled the group.
D) Classes receiving NO PACKET were the control group
Answers: 2
Mathematics, 21.06.2019 14:50, natalie2sheffield
Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2 . (1 point) 2 square root of 8 8 square root of 2 8 square root of 6 6 square root of 8
Answers: 1
Mathematics, 21.06.2019 17:10, payshencec21
The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?
Answers: 1
Mathematics, 21.06.2019 18:00, rosenatalie222
In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.
Answers: 1
Mrs. Redline teaches Exploratory Topics and wanted to help her students excel on the upcoming midter...