Question

please help me please answer this question correctly answers will be marked as brain list​

Answer 1

Answer:

1) (i) Mean = (15 + 22 + 12 + 10 + 11)/5

= 70/5

= 14

Hence Mean of the marks of 5 students = 14

(ii) Median = the middle number when the numbers are arranged in ascending order

Arranging the numbers in ascending order we get

10 , 11 , 12 , 15 , 22

The middle number in the group of numbers is 15.

Hence Median = 15

2) Not Defined.

It is not possible because if x $\leq$ 10, then none of the numbers are irrational for √(x² - 1)

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