1. Following data represents the blood pressure of 18 persone examined by a doctor in a health camp
103, 142, 123, 123, 122, 103, 136, 123, 123, 133, 131, 103, 112, 142, 123, 142, 142, 142
Array this data and prepare a frequency distribution table using tally method
Answers
OBSERVATION TALLY FREQUENCY
103 III 3
142 ∦∦ 5
123 ∦∦ 5
122 I 1
136 I 1
133 I 1
131 I 1
112 I 1