AMDM Review

On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________

• 91
• 273

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the average number of students in each class if there are 250 students in 10 classes?

• 240
• 25

Tags

CCSS.5.NBT.B.6

CCSS.5.NF.B.3

Clayton plays basketball on a team. He has played three
games so far. In the first game, he scored 10 points. In
the second game, he scored 14 points. In the third game,
he scored 6 points. What is Clayton's average points per
game?

• 30
• 12
• 3
• 10

Tags

CCSS.6.NS.B.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Mrs. Monk is selling tickets to the football game. Student tickets cost $3 and adult tickets cost $5. She sold 57 tickets collecting a total of $205. How many adult tickets did she sell?

• 17 adult

• 40 adult

• 17 student

• 40 student

A student's grade in a Psychology course is comprised of tests (40%), quizzes (20%), papers (20%), and a final project (20%). His scores for each of the categories are 85 (tests), 100 (quizzes), 92 (papers) and 84 (final project). Calculate his overall grade.

• 90.25
• 88.2
• 89.2
• 86.7

Tags

CCSS.5.NBT.B.7

Mark wants to calculate his calculus grade. The teacher's policy is that the tests count 40%, quizzes 20%, homework 10%, projects 15% and the final exam is 15%. If Marks's test average is 92, his quizzes are 95, his homework is 100, projects 90 and final exam is 92, what will his final grade in the class be?

• 93.6

• 93.7

• 93.1

• 93.8

Select the true statements. 

• In an experiment, one variable is manipulated and the responses are measured. 
• In an observational study, no variables are manipulated however at least one variable is measured. 
• Observational studies and experiments are both used to gather data and draw conclusions. 
• All of the above.

In an experiment, who are the "subjects"?

• The people conducting the experiment. 
• The individuals taking part in the experiment. 
• The topic of the experiment. 
• The people funding the experiment. 

Medical experiments, such as one to compare aspirin with a placebo for preventing heart attacks, are often double blind. This means that...

• neither the subject nor the doctors know which treatment the patient received. 
• subjects choose which treatment they get, but do not tell the doctors. 
• all individual data are kept confidential. 
• subjects are told either their treatment or their medical condition. 

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

The most important advantage of experiments over observational studies is that...

• experiments are usually easier to carry out than observational studies. 
• experiments can give better evidence of causation. 
• confounding cannot happen in experiments. 
• an observational study cannot have a response variable.