Which of the following statements are correct?
Statement-1 : If the width of a class-interval
is 20 and its mid-value is 90, then the lower
class limit of the class-interval is 80.
Statement-2 : Class marks for the classinterval 50-70 is 60.
AStatement-1 is true but Statement-2 is false.
BBoth Statement-1 and Statement-2 are true.
CStatement-1 is false but Statement-2 is true.
DBoth Statement-1 and Statement-2 are false.