10, 5, 13, 10, 16, 20, 19, (.....) (a) 22       (b) 40       (c) 38         (d) 23

If the mode of 22 ,\ 21 ,\ 23 ,\ 24 ,\ 21 ,\ 20 ,\ 23 ,\ 26 ,\ x and 26 is 23, then x= (a) 20 (b) 21 (c) 23 (d) 24

Let the marks obtained by 30 students of a class in a test be 38, 26, 4, 32, 20, 22, 11, 47, 12, 23, 8, 2, 10, 8, 12, 17, 2, 19, 16, 42, 40, 13, 47, 38, 17, 27, 30, 6, 23, 18. Arrange the data in grouped frequency distribution, using groups 0-10, 10-20 e tc.

If the arithmetic mean of 7,\ 5,\ 13 ,\ x and 9 is 10 , then the value of x is (a) 10 (b) 12 (c) 14 (d) 16

{:(A , B , C , D , E , F , G , H , I , J , K , L , M , N , O , P , Q , R ,S , T ,U , V , W ,X , Y , Z), (1 ,2 , 3 , 4 ,5, 6 , 7,8,9,10 , 11 , 12, 13, 14, 15 , 16 , 17 , 18 , 19, 20 , 21 ,22 , 23 , 24 , 25 , 26):} B:16::D:?

Form a grouped frequency distribution from the following data by inclusive method taking 4 as the class size of class intervals. 31, 23, 19, 29, 22, 20, 16, 10, 13, 34, 38, 33, 28, 21, 15, 18, 36, 24, 18, 15, 12, 30, 27, 23, 20, 17, 14, 32, 26, 25, 18, 29, 24, 19, 16, 11, 22, 15, 17,10

Find the median of 10, 12, 11, 13, 20, 22, 10, 8, 19. A) 11 B) 13 C) 11.5 D) 12

If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are (a) 5, 10, 15, 20 (b) 4, 10, 16, 22 (c) 3, 7, 11, 15 (d) none of these

If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are (a) 5, 10, 15, 20 (b) 4, 10, 16, 22 (c) 3, 7, 11, 15 (d) none of these

number of terms common to the two sequences 17,21,21,......,417 and 16,21,26,......,466 is (A) 19(D)22 (B) 20 (C) 21