Question 1 - IQR and Five-Number Summary — IQR = Q3−Q1, outlier fences Practice

Question 1

00:00Est. 2 min

Marks:+4.000.00

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:

\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

Medium Difficulty

26 October 2025

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