Answer:
The answer to number 9 is: 148.16
Answer:
220
Step-by-step explanation:
660÷12=55 miles per hour
4×55=220
Answer:
0.125
Step-by-step explanation:
convert to decimal, then divide
Options :
A.) To avoid bias
B. To control for confounding variables
C. To produce treatment groups with similar characteristics
D. To generalize the experiment results to all freshman math students
Answer:
To avoid bias
To generalize the experiment results to all freshman math students
Step-by-step explanation:
One of the most common problems with statistical experimental research is the issue posed by bias. Either selection bias or assignment bias. Bias creeps into our experiment when one experimental group is more favored than the other. This means that the strategy employed is not totally random. In the experimetal design explained above, students were randomly assigned to group in other to avoid bias. This random assignment ensures that all samples have equal probability of being assigned to any of the two groups.
Randomized experimental designs also allows for making a good estimate of the population parameter fromnthe sample statistic
Answer:
answer: 50
Step-by-step explanation:
answer is 50 because triangles like this will add up to 180 and 50 + 55 + 75 = 180 Hope that helps!