(i) A grouped frequency distribution table of class
Size 2 has to be constructed. The class intervals will be 84 − 86, 86−88, and 88 − 90…
By observing the data given above, the required table can be constructed as follows.
Relativehumidity(in%)Number of days(frequency)84−86186−88188−90290−92292−94794−96696−98798−1004Total30