Answer:
32+48
Step-by-step explanation:
80- 32= 48
80-48= 32
Hope this help to answer you question.
It would be 28:20
7=5=12
48/12=4
7x4=28
5x4=20
Answer: 53.84%
Step-by-step explanation:
Given
The average cost of hiring is £520
The new increased cost of hiring is £800
Percentage increase is

Putting values

Solution: The sample mean of sample 1 is:

The sample mean of sample 2 is:

The sample mean of sample 3 is:

The sample mean of sample 4 is:

The minimum sample mean of the four sample means is 3.6 and maximum sample mean of the four sample means is 4.4.
Therefore, using his four samples, between 3.6 and 4.4 will Ardem's actual population mean lie.
Hence the option 3.6 and 4.4 is correct