Applied Statistics
What is the center of distribution? correct answers - represents the typical value
- half of the observations has smaller values & the other half w/ larger values
What does left skewed look like? correct answers
What does right skewed look like? correct answers
What is variability or spread of distribution? correct answers giving the smallest & largest
values, we can wish to leave off outliers
What are histograms good for? correct answers to show how data distributed
What does a stemplot look like turned? correct answers a histogram
What is the mean or average? correct answers a set of numbers divided by the amount of values
there are.
Whats the different between sample & population mean?what do they look like correct answers
sample mean - x w/ a dash over it
population mean - weird u
What is the median? correct answers It is the value that is in the middle of a set of date in order,
where half of the observation is on one side & other half on the other
What happens to the mean & median when there is an extreme outlier? correct answers the
media remains the same but the mean is pulled to the direction of the extreme value
what does it mean to be resistant? what term is resistant correct answers it means to be resistant
from outliers
therefore the median is a resistant bc it is not effected by the outlier
In right skewed observation, where is the mean pulled to? correct answers high observation pulls
the mean right of the median, toward the long tail
In left skewed observation, where is the mean pulled to? correct answers low observations pulls
the mean left of the median, toward the long tail
What is mode? correct answers is it the value that appears the most in the set of data
0 means no mode
When is weighted mean appropriate? correct answers when observations have unequal
importance
What is the range? correct answers the simplest method to look at variability
max - min
but not always satisfactory
What is Standard Deviation? correct answers a reliable way to measure the variability, it measure
how far it is away from the mean
by measuring x1 - sample mean, x2 - sample mean....
How do you find standard deviation on your calculator? correct answers STAT
swipe to CALC
4: LinReg (ax+b)
fun fact s - 1 under the standeviation equation is for accuracy as for population mean is just
divides by n correct answers
What is the five number summary? correct answers 1. minimum
2. Q1 - the median of the observation on the left side of the median
3. median
4. Q3 - the median of the observation on the right side of the median
5. max
What is the center of distribution? correct answers - represents the typical value
- half of the observations has smaller values & the other half w/ larger values
What does left skewed look like? correct answers
What does right skewed look like? correct answers
What is variability or spread of distribution? correct answers giving the smallest & largest
values, we can wish to leave off outliers
What are histograms good for? correct answers to show how data distributed
What does a stemplot look like turned? correct answers a histogram
What is the mean or average? correct answers a set of numbers divided by the amount of values
there are.
Whats the different between sample & population mean?what do they look like correct answers
sample mean - x w/ a dash over it
population mean - weird u
What is the median? correct answers It is the value that is in the middle of a set of date in order,
where half of the observation is on one side & other half on the other
What happens to the mean & median when there is an extreme outlier? correct answers the
media remains the same but the mean is pulled to the direction of the extreme value
what does it mean to be resistant? what term is resistant correct answers it means to be resistant
from outliers
therefore the median is a resistant bc it is not effected by the outlier
In right skewed observation, where is the mean pulled to? correct answers high observation pulls
the mean right of the median, toward the long tail
In left skewed observation, where is the mean pulled to? correct answers low observations pulls
the mean left of the median, toward the long tail
What is mode? correct answers is it the value that appears the most in the set of data
0 means no mode
When is weighted mean appropriate? correct answers when observations have unequal
importance
What is the range? correct answers the simplest method to look at variability
max - min
but not always satisfactory
What is Standard Deviation? correct answers a reliable way to measure the variability, it measure
how far it is away from the mean
by measuring x1 - sample mean, x2 - sample mean....
How do you find standard deviation on your calculator? correct answers STAT
swipe to CALC
4: LinReg (ax+b)
fun fact s - 1 under the standeviation equation is for accuracy as for population mean is just
divides by n correct answers
What is the five number summary? correct answers 1. minimum
2. Q1 - the median of the observation on the left side of the median
3. median
4. Q3 - the median of the observation on the right side of the median
5. max
