Reference no: EM132399700

a) Using the data given below

36.0          36.2    34.8    36.0    34.6    38.4    35.4    36.8     34.7    33.4    37.4    38.2

31.5          37.7    36.9    34.0    34.4    35.7    37.9    39.3     34.0    36.9    35.1    37.0

33.2          36.1    35.2    35.6    33.0    36.8    33.5    35.0     35.1    35.2    34.4    36.7

36.0          36.0    35.7    35.7    38.3    33.6    39.8    37.0     37.2    34.8    35.7    38.9

37.2          39.3     

i. Form frequency distribution table using class interval of 2 units

ii. Compute less than and greater than cumulative frequencies as well as relative frequencies

iii. Plot both less than and greater than ogive curves and use them to approximate median

iv. Plot histogram and use it to approximate mode

b) In a given set of data we can get two regression lines. Explain using suitable illustrations