COLLEGE STATISTICS FINAL EXAM WITH ALL CORRECT
& 100% VERIFIED ANSWERS|UPDATED TO PASS
A researcher divided subjects into two groups according to gender and then selected members from
each group for her sample. What sampling method was the researcher using? ✔Correct answer-
Stratified
A study that involves no researcher intervention is called ✔Correct answer-an observational study
A variable that interferes with other variables in the study is called ✔Correct answer-a
confounding variable
What is another name for the ogive? ✔Correct answer-Cumulative frequency graph
What are the boundaries for 8.6-8.8? ✔Correct answer-8.55-8.85
Except for rounding errors, relative frequencies should add up to what sum? ✔Correct answer-1
What is the value of the mode when all values in the data set are different? ✔Correct answer-
There is no mode
When data are categorized as, for example, places of residence (rural, suburban, urban), the most
appropriate measure of central tendency is the ✔Correct answer-mode
P sub50 corresponds to ✔Correct answer-Q sub2 OR D sub5
Which is not part of the five-number summary? ✔Correct answer-The mean
When a distribution is bell-shaped, approximately what percentage of data values will fall within 1
standard deviation of the mean? ✔Correct answer-68%
The probability that an event happens is 0.42. What is the probability that the event won't happen?
✔Correct answer-0.58
When a meteorologist says that there is a 30% chance of showers, what type of probability is the
person using? ✔Correct answer-Empirical
The sample space for tossing 3 coins consists of how many outcomes? ✔Correct answer-8
The complement of guessing 5 crrect answers on a 5-question true/false exam is ✔Correct answer-
guessing at least 1 incorrect answer
When two dice are rolled, the sample space consists of how many events? ✔Correct answer-36
What is subn P sub0? ✔Correct answer-1
What is the number of permutations of 6 different objects taken all together? ✔Correct answer-
720
& 100% VERIFIED ANSWERS|UPDATED TO PASS
A researcher divided subjects into two groups according to gender and then selected members from
each group for her sample. What sampling method was the researcher using? ✔Correct answer-
Stratified
A study that involves no researcher intervention is called ✔Correct answer-an observational study
A variable that interferes with other variables in the study is called ✔Correct answer-a
confounding variable
What is another name for the ogive? ✔Correct answer-Cumulative frequency graph
What are the boundaries for 8.6-8.8? ✔Correct answer-8.55-8.85
Except for rounding errors, relative frequencies should add up to what sum? ✔Correct answer-1
What is the value of the mode when all values in the data set are different? ✔Correct answer-
There is no mode
When data are categorized as, for example, places of residence (rural, suburban, urban), the most
appropriate measure of central tendency is the ✔Correct answer-mode
P sub50 corresponds to ✔Correct answer-Q sub2 OR D sub5
Which is not part of the five-number summary? ✔Correct answer-The mean
When a distribution is bell-shaped, approximately what percentage of data values will fall within 1
standard deviation of the mean? ✔Correct answer-68%
The probability that an event happens is 0.42. What is the probability that the event won't happen?
✔Correct answer-0.58
When a meteorologist says that there is a 30% chance of showers, what type of probability is the
person using? ✔Correct answer-Empirical
The sample space for tossing 3 coins consists of how many outcomes? ✔Correct answer-8
The complement of guessing 5 crrect answers on a 5-question true/false exam is ✔Correct answer-
guessing at least 1 incorrect answer
When two dice are rolled, the sample space consists of how many events? ✔Correct answer-36
What is subn P sub0? ✔Correct answer-1
What is the number of permutations of 6 different objects taken all together? ✔Correct answer-
720
