can someone please.explain this, I couldn't add two pics, so can you please refer to the table 14.11 in pg: 278
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bharat9291:
whats the problem
I ADVISE YOU NOT TO LOOK AT ALREADY DONE SOLUTIONS AND TRY IT FOR YOURSELF AND IF YOU DOT'S GET IT YOU CAN ASK SO DON'T LOOK AT SOLUTIONS CUZ THEY ARE SOME TIMES DONE SKIPPING SOME STEPS WHICH WE MAY NOT BE ABEL TO CATCH...
sir, how was the 50th and 51st observation found.
the cf table tells you that from 27th to 50th term is 28 and from 51st to 78th each term will be 29
ok sir thank you
Answers
Answered by
1
Answer:28.5
Step-by-step explanation:
When there are an even number of observations, there is no exact middle observation. As median is defined as the middle most observation, when there are an even no. of observations such as in the above case, we take the average of the two observations in the middle. In the above case total no. of observations is even, therefore the average of both the middle terms is the median.
Answered by
4
Answer:
see cf table
Step-by-step explanation:
row 1 : 6 students have got 20 marks
row 2:26 students have got upto 25 marks and so on...
out of 100 students 50th student has got 28 marks while 51st 29
median of even obs= average of n/2+n/2+1
=100/2+100/2+1= mean of 50th obs+ 51st=[28+29]/2=28.5
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