If $(1-100),(101-200),(201-300),(301-400),(401-500)$ and $(501,600)$ are the class intervals of a frequency distribution, then the true class width is

Q. In a frequency distribution, then mid value of a class intervals is $5$ and the width of the class interval is $6$ the lower limit of the class-interval is

Q. In a frequency distribution, then mid value of a class intervals is 5 and the width of the class interval is 6 the lower limt of the class-interval is

Q. The class intervals in a frequency distribution are:
40 – 44, 45 – 49, 50 – 54,........ If the frequency distribution, is converted into a continuous frequency distribution then the class intervals are _________.

Q. In a frequency distribution, the mid value of a class is 42 and the width of the class is 10, then the class interval is ________.