Fill ups
For a raw data, Range+Number of classes, gives………………to form a continuous frequency distribution?

Let m be the mid-point and l be the upper class limit of a class in a continuous frequency ditribution. The lower class limit of the class is :

For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequency of the respective classes and abcissae are respectively :

A study was conducted to find out the concentration of sulphur dioxide in the air in parts per million (ppm) of a certain city. The data obtained for 30 days is as follows : Make a grouped frequency distribution table for this data with class intervals as 0.00 - 0.04, 0.04 -0.08 and so on.

The relative humidity (in %) of a certain city for a month of 30 days was as follows : : Construct a grouped frequency distribution table with classes 84 - 86, 86-88 etc.

Draw a histogram for the frequency distributions of the following data

A company manufactures carbatteries of particular type. The lives (in years) of 40 such batteries were recorded as follows : Construct a grouped frequency distribution table for this data, using class intervals of size 0.5 starting from the interval 2— 2.5.

Three coins were tossed 30 times simultaneously.Each time thenumber of heads occurring was noted down asfollows : Prepare a frequency distribution for the data given above

The blood groups of 30 students of a class VIII are recorded as follows : Represent this data in the form of a frequency distribution table. Which is themost common and which is the rarest blood group among these students ?

The height of 50 students, measured to the nearest centimetres have been found to be as follows: Represent the data given above by a grouped frequency distribution table, taking the class intervals as 160-165, 165-170 etc.