( 4.)Out of 10 students, who appeared in a test,three secured less tha

1.	( 4.)Out of 10 students, who appeared in a test,three secured less than 30 marks and 3secured more than 75 marks. The markssecured by the remaining 4 students are 35,48, 66 and 40. Find the median score of thewhole group.
Answer» There is a MISTAKE in this question. The total students are 10 but the marks are given only of 9 students. So, I am SOLVING this question assuming that the students are 9. Let the marks of those students who scored less than 35 marks be a, b, C and marks of the students who scored more than 70 marks be x, y, z. The ascending order of the marks = a, b, c, 39, 43, 51, x, y, z Now, Median = (n + 1)/2 = (9 + 1)/2 10/2 = 5 so, 5th OBSERVATION is 43. So, the median score of the whole group is 43 marks.

( 4.)Out of 10 students, who appeared in a test,three secured less than 30 marks and 3secured more than 75 marks. The markssecured by the remaining 4 students are 35,48, 66 and 40. Find the median score of thewhole group.

Answer»

There is a MISTAKE in this question. The total students are 10 but the marks are given only of 9 students. So, I am SOLVING this question assuming that the students are 9.

Let the marks of those students who scored less than 35 marks be a, b, C and marks of the students who scored more than 70 marks be x, y, z.

The ascending order of the marks = a, b, c, 39, 43, 51, x, y, z

Now,

Median = (n + 1)/2

= (9 + 1)/2

10/2 = 5

so, 5th OBSERVATION is 43.

So, the median score of the whole group is 43 marks.

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( 4.)Out of 10 students, who appeared in a test,three secured less than 30 marks and 3secured more than 75 marks. The markssecured by the remaining 4 students are 35,48, 66 and 40. Find the median score of thewhole group.​

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( 4.)Out of 10 students, who appeared in a test,three secured less than 30 marks and 3secured more than 75 marks. The markssecured by the remaining 4 students are 35,48, 66 and 40. Find the median score of thewhole group.