WorksheetsU2S1 Exam: What is Your True Color?
Total questions: 30
Worksheet time: 24mins
Another way to organize collected data is:
subsetting
setting
interpolation
extrapolation
A value that shows the tendency of quantitative data to gather around a central, or typical, value.
Measures of central tendency
Measures of variability
Measures of scalability
Measures of spread
Values that show how much the quantitative data varies. Also known as measures of spread.
Measures of variability
Measures of qualitative spread
Measures of tendency
Variables
Add up all of the numbers. Then divide by how many numbers there are.
Is how mean is calculated.
Is how mean you are.
Is how median is calculated.
Is how average is not calculated.
Another name for the balancing point of a distribution is
mean
median
mode
standard deviation
What is this?
mean
mode
median
M.A.D
What is this?
median
mean
mode
M.A.D
Which plot makes it easier to find the median number for small data sets – the dot plot or the histogram?
dot plot
histogram
neither
It's the same
Which plot makes it easier to find the median number for large data sets – the dot plot or the histogram?
histogram
dot plot
neither
It's the same
What's the relationship between the mean and median values for the symmetric distributions?
They are fairly similar
They are fairly dissimilar
The mean is smaller than the median
The mean is larger than the median
What's the relationship between the mean and median values for the left-skewed distributions?
The mean value was smaller than the median value.
The mean value was larger than the median value.
The mean and the median value are similar.
The relationship cannot be determined.
What's the relationship between the mean and median values for the right-skewed distributions?
The mean value was larger than the median value.
The mean value was smaller than the median value.
The mean and the median values are similar.
No relationship can be determined.
The better measures of center for skewed distributions are typically ______, and the better measures for center for symmetric distributions are typically _____.
medians, means
means, medians
mode, means
medians, modes
______ measures the variability in a sample of data - the larger the value, the greater the variability
M.A.D
Median
Mean
Skewness
Measures of variability are also known as measures of spread when making a sandwich?
False
True
neither
both
What is Deviation?
Act of departing from an established course or accepted standard.
Act of praying to establish a course or accepted standard in life.
A known standard or norm that is followed.
Act of following an established course or accepted standard.
Deviations from what is typical (mean, median) can be calculated when _____?
data are quantified with numbers.
data are qualified with numbers.
data are quantified with algebraic expressions.
calculations are used with numbers.
This expression is?
MAD
mean
Sigma and absolute value notation
IQR
Distribution with a wider spread (more variability) have a larger _____
MAD
spread
skew value
IQR but smaller MAD
Mean, median, MAD, plots, skewness are tools that help us describe data to someone who may not actually be viewing it.
true
false
neither
No, they are not tools.
A type of statistical plot that involves breaking data up via median into distinct pieces is:
boxplot
dotplot
histogram
histograph
Breaks between data group are called quartiles because?
They break the data into four groups.
They break the data into four numbers.
They break the data into fourths by taking the 20th percentiles.
The word is not used in our terminology for data.
The five lines in boxplot which represent the five-number summary of:
minimum, first quartile, median, third quartile, and maximum
minimum, first third, median, second third, and maximum
minimum, mean, median, MAD, and maximum
minimum, IQR, range, median, and maximum
What is the difference between the largest and smallest values?
range
domain
IQR
data spread
IQR stands for:
interquartile range
intermediate range
In Quartile Realization
It's another name for Mean Average Deviation
How is IQR calculated:
Q3 – Q1
subtract median range from range
Q4 - Q1
third of data subtracted from half of data
What does it mean when the IQR is small?
The middle 50% of data are close to each other.
The middle 30% of data are close to each other.
The range of data are close to each other.
The outer 50% of data are spread out to each other.
What types of data are best for using a histogram?
Histograms are useful for almost any type of data.
Histograms are useful for very limited data types.
Histograms are useful for type of data where a dotplot won't work.
Histograms are not useful for almost any type of data.
What types of data are best for using a dotplot?
Dotplots can easily show the shape of a distribution of small data sets.
Distributions of large data sets.
Dotplots can not easily show the shape of a distribution of large data sets.
Plots were histograms cannot show the shape of a distribution due to large data sets.
What types of data are best for using a boxplot?
When the distribution is unimodal and heavily skewed or contain outliers.
When the distribution is bimodal and symmetric with some outliers.
When the distribution is heavily skewed with no outliers.
It's never good to use a boxplot as the information it provides is limited.
