Look at the patterns and fill up the missing boxes. State the rule which connects the quantities in the different columns. Find the generalised statement for n in each case.
`{:(a,15,14,13,12,11,10,n),(b,10,9,8,7,,,):}`

{:(8,7,10,12),(13,12,15,17),(10,9,?,14):}

Find semi-inter quartile range of the following data: {:("X",3,6,7,9,10,11,13),("f",2,9,13,17,10,14,15):}

Find the mode of the following data in each case: 14,25,14,28,18,17,18,14,23,22,14,187,9,12,13,7,12,15,7,12,7,25,18,7

Find the mean deviation about the mean for the mean for the following data : 15, 17, 10, 13, 7, 18, 9, 6, 14, 11

Letters of the words given below have been jumbled up and you are required to construct the words. Each letter has been numbered and each word is followed by for options. Choose the option which gives the correct order of the letters as indicated by the numbers to form words. {:(G,E,D,E,M,E,N,L,C,K,N,O,W,A,T),(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15):}

Given the following data , calculate mode using the grouping technique . {:("Size",2,3,4,5,6,7,8,9,10,11,12,13),("Frequency",3,8,10,12,16,14,10,8,17,5,4,1):}

From the following data , determine the mode by grouping method : {:("Size",7,8,9,10,11,12,13,14,15,16,17),("Frequency",2,3,6,12,20,24,25,7,5,3,1):}

Find the missing number 10,12, 9, 13, 8, 2, 7

The following question is based on a certain pattern , with one number missing .Select the missing number from the given responses / alternativs: 7,10,8,11,9,12 ?