IQR and Five-Number Summary — IQR = Q3−Q1, outlier fences Previous Year Questions | Prasnya
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Describing Numerical Data - Describing Numerical Data
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IQR and Five-Number...
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Q1
A startup recorded the daily step counts (in thousands) of 8 users: 8, 17, 15, 19, 21, 25, 23, 35. To spot unusually active users, the startup sets a threshold:
Threshold
=
Q
3
+
1.5
×
IQR
\text{Threshold} = Q_3 + 1.5 \times \text{IQR}
. Any user whose step count is above this threshold will be marked as an outlier. How many users will be marked as outliers?
Integer answer
OCTOBER 26, 2025
OCTOBER 26, 2025
