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Sampling
Experiments
Probability
Normal Distribution
100
Out of a population of people, you pick out people at random to represent the whole. This process is known as...
Random Sampling
100
A false treatment used in a study is known as...
A Placebo
100
A die has 6 sides, so the probability of rolling a 3 is 1/6. This is an example of what kind of probability?
Theoretical
100
What is the shape of a normal curve?
A bell shape
200
Systematic Errors in the way the sample represents the population is known as...
Bias
200
An experiment where the people administering the treatment do not know which treatment they are giving is known as...
Double Blind
200
After rolling a die 60 times, I roll a 3 exactly 10 times. Therefor, I can assume that the probability of rolling a 3 is 1/6. This is an example of what kind of probability?
Relative Frequency (Empirical)
200
A high school principal is allowing all seniors with a GPA that is 1 standard deviation above the mean to go on a field trip to six flags. Assuming the GPA of the senior class is normal, what percentage of students are missing out?
84%
300
The lack of response to a survey is known as...
Nonresponse
300
A variable that changes as a result of another variable is known as...
A Response Variable
300
Actions like rolling a die or flipping a coin are known as what kind of variables?
Discrete Variables
300
What percentage of people have IQs below a standard deviation of 0.46? (IQs are normally distributed)
67.72%
400
Using this string of random digits, predict how many times a coin will land on heads. Assume heads is even numbers and tails is odd. 9148713954287548562751972
10
400
You are conducting a study where you are trying to find any harmful effects of a new heart disease medication you created you are most likely using which kind of study?
Experimental Study
400
Variables such as a person's height, how long they sleep, or blood-alcohol content are known as...
Continuous Variables
400
What is the formula to find z score?
Z = (X-Mean) / Standard Deviation
500
Write 1 good and 1 bad survey question pertaining to the approval of President Obama
Answers may vary
500
You are testing a new antidepressant and how it effects happiness. You study men and women separately, splitting each gender into four groups. One group takes the antidepressant, one takes a competitor's antidepressant, one takes a placebo, and the last takes nothing. After three weeks, you measure everyone's happiness. Create a flow chart describing this process.
.
500
Write out a sample space for an experiment where you flip 3 coins at the same time.
HHH HHT HTT HTH THH THT TTH TTT
500
Find the area under a normal curve that lies between -2.12 and 0.85
78.53%