Evaluate `|{:(13,16,19),(14,17,20),(15,18,21):}|`.

Find the values of the following determinants |{:(13,15,17),(14,16,18),(15,17,19):}|

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives. {:(14,19,12),(13,15,?),(18,?,16):}

Prove that:: det [[13,16,1914,17,2015,18,21]] = 0

Find the mode and median of the data: 13,16,12,14,19,12,14,13,14

Find the mean deviation from the median for the following data : 13,17,16,14,11,13,10,16,11,18,12,17

{:(9,11,13),(13,15,17),(10,12,14),(14,16,18),(11,13,?):}

A class has 15 students whose ages are 14,17,15,14,21,17,19,20,16,18,20,17,16,19 and 20 yr. One students is selected in such a manner that each has the same chance of being of chosen and the age X of the selected stuydent is recorded. Mean variance and standard deiation (SD) of X,are respectvely

Find the mean deviation about the mean for the following data : 12,3,18,17,4,9,17,19,20,15,8,17,2,3,16,11,3,1,0,5

Find the mean deviation from the mean for the following data 12,3,18,17,4,9,17,19,20,15,8,17,2,3,16,11,3,1,0

Find the mean deviation about the median for the data :13,17,16,14,11,13,10,16,11,18,12,17