Question

During your cycling trip, you and your friends often stayed in hostels. The prices of these are listed below.

Can someone help me answer these?

Answer 1

$26.3 night-time rest days

Range is $33.19

Explanation:

We need to find the mean of the standard cost to find the night-time rest days:

`Mean=\frac{\text{sum of the observations}}{\text{Number of observations}}`

So, the required mean is :
`(22.45+18.55+24.50+11.20+??)/(5)=20.60`

`(76.7+?)/(5)=20.60`

`\Rightarrow 76.7+?=103`

`\Rightarrow ?=26.3`

After simplification we will get the night-time rest days price which is: $26.3

Now, we will find the range in cost of stays in standard price and with breakfast price which is difference between the maximum cost minus the lowest cost

So, the sum of Standard cost is: $103

And the sum of Breakfast price cost is: $136.19

So, the required range is: $136.19-$103=$33.19