Math, asked by arunareddykatam, 16 hours ago

8. The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows: Mon The Wed Thurs Sat Sun Day Rainfall (in mm) 0.0 12.2 2.1 0.0 20.5 5.5 1.0 20 (1) Find the range of the rainfall in the above data. (ii) Find the mean rainfall for the week. (iii) On how many days was the rainfall less than the mean rainfall. CU​

Answers

Answered by MissIncredible34
3

Step-by-step explanation:

Given that

the rainfall(in mm) in a city on 7 days of a certain week recorded as follows

Day Mon Tue Wed Thus Fri Sat Sun

Rainfall(in mm) 0.0 12.2 2.1 0.0 20.5 5.3 1.0

We range=Highest Rain fall−lowest rainfall

=20.5−0.0

Range of the rainfall=20.5mm

We know mean=

No. of days

sum of rainfall in a city all days

=

7

0+12.2+2.1+0+20.5+5.3+1

=

7

41.1

Mean rainfall=5.87mm

from the above the data the rainfall less than mean rainfall

Day Mon Wed Thus Sat Sun

Rainfall(in mm) 0 2.1 0 5.3 1

Hence,

No. of days was rainfall less than the mean rainfall is 5 days.

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