plss answer it fast its urgent
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is that your test sheet?
anyways here's your answer:
Let first frequency be x. So, second frequency y = 52 - (4+x+8+4+3+2) = 31-x
Cost of living index No. of weeks(f) c.f.
1500-1600 4 4
1600-1700 x 4+x -->c
1700-1800 31-x -->f 35
1800-1900 8 43
1900-2000 4 47
2000-2100 3 50
2100-2200 2 52
Given, Median=1755 , which lies in the class 1700−1800.So, L=1700, N2=522=26, h=100, f=31−x, and c=4+xThus,Median=L+(N2−cf)h⇒1755=1700+(26−4−x31−x)100⇒55=(22−x31−x)100⇒55(31−x)=(22−x)100⇒1705−55x=2200−100x⇒100x−55x=2200−1705⇒45x=495⇒x=11And,y=31−x=31−11=20⇒y=20
anyways here's your answer:
Let first frequency be x. So, second frequency y = 52 - (4+x+8+4+3+2) = 31-x
Cost of living index No. of weeks(f) c.f.
1500-1600 4 4
1600-1700 x 4+x -->c
1700-1800 31-x -->f 35
1800-1900 8 43
1900-2000 4 47
2000-2100 3 50
2100-2200 2 52
Given, Median=1755 , which lies in the class 1700−1800.So, L=1700, N2=522=26, h=100, f=31−x, and c=4+xThus,Median=L+(N2−cf)h⇒1755=1700+(26−4−x31−x)100⇒55=(22−x31−x)100⇒55(31−x)=(22−x)100⇒1705−55x=2200−100x⇒100x−55x=2200−1705⇒45x=495⇒x=11And,y=31−x=31−11=20⇒y=20
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