`|(24,25,26),(25,26,27),(26,27,27)|=`

Without actual expansion, prove that the following determinants vanish: {:|(24,25,26),(27,28,29),(30,31,32)|

For what value of x, the mode of the following data is 27?25,26,27,23,26,24,x,27,26,25,25,27

Find the variance and standard deviation for each of the data: 20,24,23,26,19,25,26,18,20,21,16,27

Find the Karl Pearson's coefficient of correlation between x and y for the following data: {:(x,16,18,21,20,22,26,27,15),(y,22,25,24,26,25,30,33,14):}

Evaluate the determinant |(1^2, 2^2, 3^2,4^2),(2^2,3^2,4^2,5^2),(3^2,4^2,5^2,6^2),(4^2,5^2,6^2,7^2)|

The marks obtained by 19 students of a class are given below: 27,36,22,31,25,26,33,24,37,32,29,28,36,35,27,26,32,35 and 28. Find (i) Median (ii) Lower quartile (iii) Upper quartile (iv) Inter quartile range

Mean deviation 26, 32, 20, 18, 25, 24, 22, 25, 27, 28, 25 through mode is

What is the mean of the given data? 23, 24, 25, 26, 27, 28, 29, 30, 31, 32

Find the mode for the following series: 2.5, 2.3, 2.2, 2.4, 2.7, 2.7, 2.5, 2.3, 2.2, 2.6, 2.2