14 8 6 6 7 ?

The following questions, select the missing number from the given responses. If 8 - 8 = 16, 7 - 7 = 14, 6 - 6 = 12, what is 5 - 5 = ?

14 6 4 4 8 ?

How many 6s are there in the following series of numbers which are preceded by 7 but not immediately followed by 9? 6 9 7 5 6 9 7 6 8 7 6 7 8 6 9 4 6 7 7 6 9 5 7 6 3

How many 7's are there in the following series which are preceded by 6 which is not preceded by 8 ? 8 7 6 7 8 6 7 5 6 7 9 6 1 6 7 7 6 8 8 6 9 7 6 8 7 1) 0 2) 1 3) 2 4) 3 5) None of these

How many 7's are there in the given series which are immediately preceded by 6 but not immediately followed by 8 ? 3 4 8 7 6 1 5 6 7 8 4 9 6 7 5

Data :   4 , 7 ,9 , 3 , 4 , 5, 3 , 6 ,7 ,6 ,8 , 6 ,7 , 6 , 5 , 6 ,8 , 6 , 5 and 4 ; then find the mode

The mode and median of the data 8, 6, 8, 7, 6, 8, 7, 6 is A. 7 and 8 B. 6 and 7 C. 8 and 7 D. 6 and 8

Calculate the mean for the following distribution: x : 5 6 7 8 9 f : 4 8 14 11 3

Calculate the mean for the following distribution: x : 5 6 7 8 9 f : 4 8 14 11 3

Find the mode of (i) 7, 7, 8, 10, 10, 11,13, 14 (ii) 4, 5, 6, 7, 8, 7, 6, 5, 3, 4, 6, 7, 6