[3 marks sum]

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5 questions · timed · auto-graded

Question 13 Marks

The median of the observations $11,12,14,(x-2),(x+4),(x+9), 32,38$ and 47 arranged in ascending order is 24. Find the value of $x$ and hence find the mean.

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Question 23 Marks

The mean of the observations $23,(x-5), 36,(x-9),(x-1)$ and 28 is 21 . Find the value of $x$ and hence find the median.

Answer

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Question 33 Marks

The marks scored by 16 students in a class test are: $3,6,8,13,15,5,21,23,17,10,9,1,20,21,18,12$. Find (a) the median (b) lower quartile (c) upper quartile

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Question 43 Marks

Find the median of $17,26,60,45,33,32,29,34,56$. If 26 is replaced by 62 , find the new median.

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Question 53 Marks

The median of the following observations $11,12,14,18,(x+4), 30,32,35,41$ arranged in ascending order is 24 . Find $x$.

Answer

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