The marks obtained by pupils of class are grouped as shown below; 0 - 4, 5 - 9,10 -14, 15 -19. Which of the following is/are not true? l. The mid values of the grouped marks are 2, 7, 12 and 17. II The class interval is 4. III The class boundaries are 0.5, 4.5, 9.5, 14.5 and 19.5

engineer joshua

12 years ago

E is d right option

Godspowerolamide

10 years ago

It's E.... The question is asking about the one that is "not true" ..... Buh the option they choosed was the "true" one in

mayapeace

12 years ago

b is d rite ans joor

Maimai89

2 months ago

The answer is meant to be E, the 0.5 would be negative to make III true.

Myschool Kelly

10 years ago

Thanks for your contributions. Correction has been made, the correct answer is B.