Question

. A group of students decided to make a project on Statistics. They are collecting the heights (in cm) of their 51 girls of Class IX-A, B and C of their school. After collecting the data, they arranged the data in the following frequency distribution

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Number of girls = Frequency (fi)

(i)  Highest frequency is in the Height( in cm ) = 145-150

( ii ) Width of class = Upper limit of the class - Lower limit of the class = 140-135 = 5

(iii) Students height of 150cm and below are = Height (in cm):- (145-150)+(140-145)+(135-140)= 29

(iv) Students of 145 cm and above :- 18+11+6+5 = 40

(v) Students more than 145 cm but less than 150 cm :- (145-150) + (150-155)= 18+11 = 29