Mathematics, 09.04.2020 18:34 norahramahi123
Trisha and Angeline want to do an experiment to see an expensive brand of mouse food is better for mice than a cheaper variety. They have twelve mice that they divide into "Group A" and "Group B." They decide to keep track of the following:
the weight of each mouse, including weight change and whether the mouse is overweight or underweight
the appearance of each mouse's fur: color, glossiness, smoothness, and greasiness
the apparent energy level of each mouse: lethargic, normal, hyperactive
How can Trisha and Angeline best avoid biasing their experiment?
A.
The lab partner who is making and recording the observations should not know which group of mice is eating which food.
B.
They should choose the kind of food for each group of mice randomly each day and make sure they can't figure out which kind of food is which.
C.
They should clearly label which group of mice is getting which food so that they can compare the two groups throughout the entire experiment.
D.
They should both make observations separately and not compare them until the experiment is over.
Answers: 3
Mathematics, 20.06.2019 18:04
Nick estimated that 5/8+4/7 is about 2.explain how you know his estimate is not reasonable plz and fast i will give 50 points
Answers: 2
Mathematics, 21.06.2019 14:50
Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift
Answers: 2
Mathematics, 21.06.2019 16:50
Line l passes through points (0,4) and (3,6) what is the slope of a line that is parallel to line l -2/3 -3/2 2/3 3/2
Answers: 1
Mathematics, 21.06.2019 17:00
The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles
Answers: 2
Trisha and Angeline want to do an experiment to see an expensive brand of mouse food is better for m...
Mathematics, 11.03.2021 23:50
Biology, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Health, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50
Social Studies, 11.03.2021 23:50
Mathematics, 11.03.2021 23:50