set 7

10 is the mean of a set of 7 observations and 5 is the mean of a set of 3 observations, the mean of the combined set is

Select the set in which the numbers are related in the same way as are the numbers of the following set. (5, 7, 11)

Write of the following sets in the set builder form: {1,7, 49 , 343}

Write the following interval in the set builder form: (-7,0)

If a set A contain 7 elements and the set B contain 9 elements, then the number of one-one and onto , mappings from A to B is :

The total number of onto functions from the set {1,2,3,4) to the set (3,4,7) is

If set A={1,2,3,4,5} and set B={1,7,6,8} then which of the following is not true?