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Descriptive statistics
task 17 of 28

The upper quartile

number●○○easy10 pts

Delivery waiting times for 9 orders in minutes:

25, 12, 46, 18, 15, 22, 30, 17, 21

What is the upper quartile Q3 (the 75th percentile)?

Your answer

min

Both a decimal point and a decimal comma are accepted.

Salaries by department in pandas Next: What the standard deviation tells us

Topic

Descriptive statistics

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Lessons in this topic (3)

Measurement scales: what you may do with a variable
Median vs mean: when a single number lies
Variability and the box plot: how much the data differ

Tasks in this topic

Which variable is interval?
A data type is not a scale
Discrete or continuous?
A mean of codes
Proportion of the answers given
Cumulative frequency
Class width by Sturges' rule
By rows or by columns?
Expected frequency
Frequencies and a contingency table in pandas
Median or mean?
Calculate the median
The median from a frequency table
The mean of two groups combined
Mean and median in Python
Salaries by department in pandas
The upper quartile
What the standard deviation tells us
Sample standard deviation by hand
The upper fence from describe() output
Coefficient of variation
What a box plot shows
When the 68, 95 and 99.7 % rule holds
What skewness reveals
Outliers and shape in pandas
Shape of the distribution and the typical order
Which line meets the requirement
Outlier, error or exception?

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