Question

The relative humidity (in %) of a certain city for a period of 30 days was recorded as follows :
98.1 98.0 99.2 90.3 88.5 93.5 92.0 98.1 94.2 95.1
89.5 92.3 97.1 93.5 92.7 95.1 97.2 93.3 95.2 96.5
96.2 92.1 84.9 90.2 95.7 89.3 97.3 96.1 92.1 98.0

(i) Construct a grouped frequency distribution table with classes 84 — 86, 86 — 88 ... etc.(ii) What is the range of this data ?

Answer 1

Step-by-step explanation:

(i) To construct a grouped frequency distribution table with classes 84 — 86, 86 — 88 ... etc

The data is

98.1 98.0 99.2 90.3 88.5 93.5 92.0 98.1 94.2 95.1

89.5 92.3 97.1 93.5 92.7 95.1 97.2 93.3 95.2 96.5

96.2 92.1 84.9 90.2 95.7 89.3 97.3 96.1 92.1 98.0

$\begin{tabular}{|l|l|}</p><p>\cline{1-2}</p><p>Class Interval & Frequency \\ \cline{1-2}</p><p>84-86 & 1 \\ \cline{1-2}</p><p>86-88 & 0 \\ \cline{1-2}</p><p>88-90 & 3 \\ \cline{1-2}</p><p>90-92 & 2 \\ \cline{1-2}</p><p>92-94 & 8 \\ \cline{1-2}</p><p>94-96 & 5 \\ \cline{1-2}</p><p>96-98 & 6 \\ \cline{1-2}</p><p>98-100 & 5 \\ \cline{1-2}</p><p>Total & 30 \\ \cline{1-2}</p><p>\end{tabular}$

Hope it helps you.

(ii) What is the range of this data ?

To find the range of the data,f Ind the difference between higher data to lower data

Range: 99.2-84.9

Range=14.3

Hope it helps you.