Find the median of the data: 5, 9, 12, 15, 18, 21, 24.
Statistics
Original Khojo Papers practice question — not from a past board paper.
Mean = 49, median = 50, mode = 32
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Sum of the marks = 441, so the mean = 441 ÷ 9 = 49. Arranged in order the data are 32, 32, 32, 45, 50, 55, 60, 65, 70, so the 5th value, 50, is the median. The value 32 occurs most often, so the mode is 32.
From the same topic and chapter, at a similar level.
Find the median of the data: 5, 9, 12, 15, 18, 21, 24.
Statistics
State one situation in which the median is a better measure of central tendency than the mean, and explain why.
Statistics
The mean of 8 observations is 25. If one observation of 30 is removed, find the mean of the remaining observations.
Statistics
The mean of five numbers is 18. If one number is excluded the mean of the remaining four is 16. Find the excluded number.
Statistics
Find the mean of the first ten natural numbers, and state what happens to the mean if each number is increased by 5.
Statistics
Find the median of 12, 7, 15, 9, 20, 11 and 18.
Statistics