Following table gives the temperature at 12:00 noon on seven successive days in a city: Day (November), 1, 2, 3, 4, 5, 6, 7 Temperature (in `\ ^0C):` , 14, 18, 14, 16, 20, 15, 18 Plot a graph to illustrate this information:

The following table gives the information regarding length of a side of a square and its area: Length of a side (in cm):, 1, 2, 3, 4, 5 Area of square (in\ c m^2) , 1, 4, 9, 16, 25 Draw a graph to illustrate this information.

The following table gives the information regarding the number of persons employed to a piece of work and time taken to complete the work: No. of persons:, 2, 4, 6, 8 Time taken (in days):, 12, 6, 4, 3 Plot a graph of this information.

Draw the temperature-time graph in each of the following cases: Time (in hours:), 7:00, 9:00, 11:00, 13:00, 15:00, 17:00, 19:00, 21:00 Temperature \ ^0F)\ in , 100, 101, 104, 102, 100, 99, 100, 98 (ii) Time (in hours), 8:00, 10:00, 12:00, 14:00, 16:00, 18:00, 20: Temperature (\ ^0F) in, 100, 101, 104, 103, 99, 98, 100

The marks of 19 students in a test were as follows: 5, 6, 8, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 16, 16, 18, 19, 20. Calculate the median and mode.

Find the mean deviation about the mean for the following data :12, 3, 18, 17, 4, 9, 17, 19, 20, 15, 8, 17, 2, 3, 16, 11, 3, 1, 0, 5

Write each of the following sets in set- builder form : A = { 4,6, 8 , 9, 10 , 12, 14, 15, 16, 18}

Find the standard deviation for the following data: (i) x : , 3, 8, 13, 18, 23 f: , 7, 10, 15, 10, 6 (ii) x : , 2, 3, 4, 5, 6, 7, 7 f: , 4, 9, 16, 14, 11, 6, 6

Three numbers are in the ratio 1:2:3 and their HCF is 6, the numbers are (a) 4, 8, 12 (b) 5, 10, 15 (c) 6, 12, 18 (d) 10, 20, 30

The temperature of patient, admitted in a hospital with typhoid fever, taken at different times of the day are given below. Draw the temperature-time graph to represent the data: Time (in hours), 6:00, 8:00, 10:00, 12:00, 14:00, 16:00, 18:00 Temp. (in \ ^0F): , 102, 100, 99, 103, 100, 102, 99

Find the equation of the regression line of y on x, if the observation (x,y) are as follows : (1, 4), (2, 8), (3, 2), (4, 12), (5, 10), (6, 14), (7, 16), (8, 6), (9, 18) Also, find the estimated value of y when x = 14.