The data given below shows the marks obtained by various students.What...
⇒ n = total frequency
∑fx = Sumoftheproductofmid − intervalvaluesandtheircorrespondingfrequency
Mid value of 10 – 12 = (10 + 12)/2 = 11
Mid value of 12 – 14 = (12 + 14 )/2 = 13
Mid value of 14 – 16 = (14 + 16 )/2 = 15
Mid value of 16 – 18 = (16 + 18 )/2 = 17
Mid value of 18 – 20 = (18 + 20 )/2 = 19

⇒ Mean = 14.67
∴The mean marks of the given data are 14.67
View all questions of this testThe data given below shows the marks obtained by various students.What...
⇒ n = total frequency
∑fx = Sumoftheproductofmid − intervalvaluesandtheircorrespondingfrequency
Mid value of 10 – 12 = (10 + 12)/2 = 11
Mid value of 12 – 14 = (12 + 14 )/2 = 13
Mid value of 14 – 16 = (14 + 16 )/2 = 15
Mid value of 16 – 18 = (16 + 18 )/2 = 17
Mid value of 18 – 20 = (18 + 20 )/2 = 19

⇒ Mean = 14.67
∴The mean marks of the given data are 14.67
The data given below shows the marks obtained by various students.What...
⇒ n = total frequency
∑fx = Sumoftheproductofmid − intervalvaluesandtheircorrespondingfrequency
Mid value of 10 – 12 = (10 + 12)/2 = 11
Mid value of 12 – 14 = (12 + 14 )/2 = 13
Mid value of 14 – 16 = (14 + 16 )/2 = 15
Mid value of 16 – 18 = (16 + 18 )/2 = 17
Mid value of 18 – 20 = (18 + 20 )/2 = 19

⇒ Mean = 14.67
∴The mean marks of the given data are 14.67