Question

Mode and mean of a data are 12 k and 15 k respectively.Median of the data is

Answer 1

Answer:

Step-by-step explanation:

if one of the zeros of the quadratic polynomial is (k -1)x2 + kx + 1 is -3 the value of k is a) 4/3. b) -4/3. c) 2/3. d) -2/3

Answer 2

Answer: 14 k is the median of the data.

Step-by-step explanation:

Concept:

Empirical Relation Between Mean, Median and Mode -

In the case of a moderately skewed distribution, i.e. in general, the difference between mean and mode is equal to three times the difference between the mean and median. Thus, in this case, the empirical relationship is expressed as, Mean – Mode = 3 (Mean – Median).

Step 1: Mode of the data is 12k and the mean of the data is 15k.

Step 2: Now putting on the above formula, we get,

            $15k -12k=3(15k-median)$

          ⇒$3k=45k-3median$

          ⇒$3 median=45k-3k$

          ⇒$median=14k$

Final ans: Median of the data is 14k.