" एन 1.सिद्ध कीजिए कि "|[13,16,19],[14,17,20],[15,18,21]|=0

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

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

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

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

Prove that the following matrix are singular: . [(13,16,19),(14,17,20),(15,18,21)]

A class 15 students whose ages are 14,17,15,14,21,17,19,20,16,18,20,17,16,19 and 20 years. One student is selected such that each has the same chance of being selected, the age X of the selected student is recorded. write the probability distribution of X

A class has 15 students whose ages are 14,17,15,14,21,17,19,20,16,18,20,17,16,19 and 20 years. One student is selected such that each has the same chance of being selected, the age X of the selected student is recorded. Find E(X).

A class has 15 students whose ages are 14,17,15,14,21,17,19,20,16,18,20,17,16,19 and 20 years. One student is selected such that each has the same chance of being selected, the age X of the selected student is recorded. Find Var(X).

Find the median of the data: 17,16,12,14,14,16,17,22,15,17,16,18

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