Measures of Cen...

Find the upper quartile for the data: $$9,11,15,19,17,13,7.$$

Find the mode of the following data:
$$25, 16, 19, 48, 19, 20, 34, 15, 19, 20, 21, 24, 19, 16, 22, 16, 18, 20, 16, 19$$

Which of the following does not change for the observation $$23, 50, 27, 2x, 48, 59, 72, 89, 5x, 100, 120$$ when $$x$$ lies between $$15$$ and $$20$$?

Mean of the following frequency distribution is

The mean of the following distribution is

The marks obtained by $$19$$ students of a class are $$27,36,22,31,25,26,33,24,37,32,29,28,36,35,27,26,32,35$$  and $$28$$. Find the lower quartile.

Find the median of the following data
$$10,18,15,11,9,16,8$$

Median of $$4,5,10,7,1,14,9$$ and $$15$$ will be:

On $$13$$ consecutive days the number of person booked for violating speed limit of $$40$$ km/hr. were as follows $$59, 52, 58, 61, 68, 57, 62, 50, 55, 62, 53, 54, 51$$.
 The median number of speed violations per day is

The arithmetic mean of 5 numbers is 27. lf one of the number is excluded the mean of the  remaining number is 25. Find the excluded number.