Question

the rainfall in (mm) on 7 days of certain week is recorded as follows Monday 3.5
Tuesday 8.2
Wednesday 0.0
Thursday 20.5
Friday 7.3
Saturday 1.0
Sunday 5.0
a) find the range of the amount of rainfall from the above data.
b) find the mean rainfall for the week.
c) for hope many days was the rainfall more than the average?

can anyone help me it's urgent​

Answer 1

Answer:

a. range = highest rainfall - lowest rainfall/ 2

= 20.5 - 0.0

= 20.5mm

b.mean =maximum rainfall + minimum rainfall/2

= 20.5+0.0/2

=10.25mm

c. average= 3.5+8.2+0.0+20.5+7.3+1.0+5.0/7

=45.5/7

= 6.5mm

therefore , three days the rainfall was more than average.