Question

81. The rainfall recorded in a city in four months is 2.8 cm, 5.8 cm, 12,5 cm and 4.4 cm respectively. Find the average rainfall? (a) 6.725 cm (b) 6.375 cm (c) 6.385 cm (d) 6.475 cm ( only fo branist )​

Answer 1

Answer:

Average rain fall = 6.375 cm

Step-by-step explanation:

The rainfall recorded in a city in four months is 2.8cm,5.8cm,12.5cm and 4.4cm respectively. To find the average rainfall, apply the formula for average

Total number of months=4

\begin{gathered}Average = \frac{sum \: of \: all \: observation}{total \: number \: of \: observation} \\ \\ Average = \frac{2.8 + 5.8 + 12.5 +4.4 }{4} \\ \\ = \frac{25.5}{4} \\ \\ Average = 6.375 \: cm \\ \\ \end{gathered}

Average=

totalnumberofobservation

sumofallobservation

Average=

4

2.8+5.8+12.5+4.4

=

4

25.5

Average=6.375 cm

Answer 2

Answer:

b is the correct answer of your question