Distance of 40 engineers from their place of residence to their place of work were found as follows

construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5. what main featues do you observe from his tabular representation.

Distance (in km) of 40 engineers from their place of residence to their place of work were found as follows Construct n grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0— 5 (5 not included). What main features do you observe from this tabular representation ?

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: (i) less than 7 km from her place of work? (ii) more than or equal to 7 km from her place of work? (iii) within 1/2 km from her place of work?

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.

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.

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows : : Make a frequency distribution table for this data, taking class width 5 and one of the class interval as 5— 10

Sketch a graph between frequency of incident radiations and stopping potential for a given photosensitive material. What information can be obtained from the value of the intercept of potential axis? A source of light of frequency of greater than the threshold freuency is placed at a distance of 1 m from the cathode of a photocell? the distnace of hte light sources from the cathode is reduced explain giving reasons, what change will you observe in the Stopping potential.