Question

The median of 30 observation is 40 and their mode is 42. Find their mean​

Answer 1

Answer:

formula 2mean = 3median-mode

2mean = 3*40-42 = 120-42 = 78

so mean = 39

Step-by-step explanation:

Answer 2

Answer:

39

Step-by-step explanation:

=>3 Median=2 Mean +Mode

=>3×40=2Mean+42

=>120-42=2Mean

=>78=2Mean

=>78/2=Mean

=>39=Mean

Therefore,

Mean=39