CBSE BOARD X, asked by rudraraj0912, 8 months ago

Plzzzz solve the first question.

Fastest and correct answer will be marked as brainliest!!!!!

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Answers

Answered by kanika0024
3

Answer:

hey mate here's ur answer

Explanation:

Answer 1

Salary (In thousand Rs.)No. of persons (f)cf5-10494910-1513318215-206324520-251526025-30626630-35727335-40427740-45227945-501280

Here, N = 280

N/2 = 280/2 = 140

It is less than 182, hence consider 182 cumulative frequency for the median class.

Median class = 10-15

C = 49. f = 133, l = 10, h = (15 - 10) = 5

Now use the formula,

 

Median = 10 + (140 - 49)/133 × 5

= 10 + 91 × 5/133

= 13.42

Median salary is Rs.13.42 thousand or Rs.13420

ANSWER 2 IN THE ATTACHMENT

PLZZ MARK ME AS BRAINLIST

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