Question

2.56 A researcher from a search engine company runs Internet searches and times how long each one takes. She found that 17 searches took 0.01 to 0.05 seconds; 57 took 0.06 to 0.10 seconds; 134 took 0.11 to 0.15 sec- onds; 146 took 0.16 to 0.20 seconds; 398 took 0.21 to 0.25 seconds; 82 took 0.26 to 0.30 seconds; and 56 took 0.31 to 0.35 seconds. Graph the frequency distribution and comment on its shape.

Answer 1

2.56) Solution:-

Frequency distribution

Time(in sec.)	Searches
0.01-0.05	17
0.06-0.10	57
0.11-0.15	134
0.16-0.20	146
0.21-0.25	398
0.26-0.30	82
0.31-0.35	56

From the above frequency distribution graph we can say shape is Left Skewed.

2.54) Solution:-

From the above graph we can say that the shape of the graph is approximately Symmetric.

Here I have solved 2 questions, for the rest please repost the rest of the question. Comment if there is any doubt to understant at any point.