
Statistical Measures and Data Analysis

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the mean when data is skewed to the right?
The mean decreases.
The mean remains the same.
The mean becomes zero.
The mean increases.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main limitation of using range to describe data spread?
It only works for small datasets.
It is affected by outliers.
It requires complex formulas.
It is difficult to calculate.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the interquartile range (IQR) represent?
The range of the entire dataset.
The average of the dataset.
The range of the middle 50% of the data.
The sum of all data points.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the IQR?
Subtract the first quartile from the third quartile.
Add the first and third quartiles.
Divide the sum of all data points by the number of data points.
Subtract the minimum from the maximum.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 1.5*IQR rule?
To calculate the mean.
To identify outliers.
To determine the mode.
To find the median.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is included in the five number summary?
Minimum, maximum, mean, mode, and median.
Mean, median, mode, range, and standard deviation.
Minimum, first quartile, median, third quartile, and maximum.
Sum, average, range, IQR, and standard deviation.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a large standard deviation indicate?
Data is spread out far from the mean.
Data has no variation.
Data is closely clustered around the mean.
Data is evenly distributed.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which histogram would have the largest standard deviation?
A histogram with data clumped in the middle.
A histogram with data evenly spread across the range.
A histogram with data spread far from the mean.
A histogram with no data points.
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When is it best to use median and IQR together?
When data is categorical.
When data is normally distributed.
When data is symmetric and unimodal.
When data has outliers or skewness.
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