Question

The pulse rate of 30 person was recorded as given below
61 , 76 , 72 , 73 , 71 , 66 , 78 , 73 , 68 , 81 , 78 , 63 , 72 , 75 , 80 , 68 , 75 , 62, 71 , 81 , 73 , 60 , 79 , 72 , 73 , 74 , 71 , 64 , 76 , 71

construct a frequency table using class intervals of equal widht , one class interval being 60 - 65​

Answer 1

Answer:

i hope this will help you

Step-by-step explanation:

Arranging the following data in ascending order:

4, 5, 7, 7, 13, 15, 16, 16, 17, 17, 19, 24, 25, 26, 27, 28, 30, 31, 34, 34, 35, 35, 36, 36, 36, 42, 44, 45, 47, 48, 

51, 52, 52, 54, 55, 55, 56, 56, 61, 62, 62, 63, 

68, 70, 72, 72, 72, 74, 75, 75, 78, 80,, 81, 85, 86, 86, 92, 95, 97.

 Marks of

60 students

(class Interval)Tally Marks  Frequency 0-9 ∣∣∣∣ 4 10-19  7 20-29  5 30-39  10 40-49  5 50-59  8 60-69  5 70-79  880-89   590-99   3Total frequency = 60