For data 1 I 4 3 8 12 17 19 9 11 if M is the median of first 5 observations and N is the median of l...........

Mathematics (NDA) Statistics

For data -1, I, 4, 3, 8, 12, 17, 19, 9,

11; if M is the median of first 5 observations and N is the median of last five observations, then what is the value of 4M - N?

This questions was previously asked in

2023 NDA -1 Math

Let’s solve step-by-step:

- First 5 observations: -1, 1, 4, 3, 8

Sorted: -1, 1, 3, 4, 8

Median (M) = middle value = 3

- Last 5 observations: 12, 17, 19, 9, 11

Sorted: 9, 11, 12, 17, 19

Median (N) = middle value = 12

- Compute 4M - N = 4 × 3 - 12 = 12 - 12 = 0

- The correct option is:

Option:4, 0

Submit Error