Mean and Median

1.Calculate the man ofall possible factors of 10.

2.Find the mode of the folloing data by making frequency table.

      14,25,14,28,18,17,18,14,23,22,14,18

3.Determine the median of 23,24,A,A-1,12,16 where  A  is the mean of  10,20,30,40,50.

4. If the median of following data is 63 .Find the value of x

      29,32,48,50,x,x+2,72,78,84,95.

5.The mean of 16 num.is 8. If 2 is added to every numbers.What is the new                 mean.

6.The mean of 20 num is 18.If 3 is added to first 10 numbers.Find the new                   mean.

7.If the mean of 10,12,18,13,p,17 is 15 .Find value of p

8.A cricketer has mean score of 58 runs in 9 innings. Find how many runs                   are be scored in10th inning so to raise themean 0f score 61.

9.Mean of 25 observation are found to be 78.4.But it was discovered that 96               was measured as 69.Find the correct mean.

10.Find the value of p if the meanof following data is 40.4

          x    10    20    30    40    50     60     70

           f     3      8     12    5        p         7       5 

11.Find the mode of  14,25,14,28,18,17,18,14,23,22,14,18

12.Find the mode of following table.

     Size of shoe  2     3     4      5      6     7      8    9   10    11

     Frequency    3     8     10    12    16    14   10    8    17    5

13.The mean of 13 ovservations is 14. If the mean of first 7 observations is                 and that of last 7 is 16 .Find the 7th observation.

14.Find the mean of following data.

     Clss interval         0 - 10     10   -  20   20  -  30    30  -  40   40  -  50

     Frequency            12             16             6              7              9

15.A coin tossed300 times ans head obtain 59 times.On tossing the coins at rendom .Find the probablity of getting Head and Tail