Answer:
Able Cable
Explanation:
Mean Value of Samples
It's central tendency statistics measure that gives one representative value out of a complete dataset. It can be computed as the sum of the values by the number of values:
![\displaystyle \bar x=(\sum x_i)/(n)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/io9nf6hkpuqcoyhe1j4e4wz021sqb1xpwu.png)
We need to evaluate the mean value of the three internet providers mentioned in the question.
For CityNet:
![\displaystyle \bar x_1=(3.6+3.7+3.7+3.6+3.9)/(5)=3.7](https://img.qammunity.org/2021/formulas/mathematics/middle-school/uvy4dyo50nqydjj9uc7l7irydifmx7ji34.png)
For Able Cable:
![\displaystyle \bar x_2=(3.9+3.9+4.1+4.0+4.1)/(5)=4.0](https://img.qammunity.org/2021/formulas/mathematics/middle-school/kiahnufg46vrxm5pt8kfcqmpvteqbiolj6.png)
And for Tel-N-Net:
![\displaystyle \bar x_3=(3.9+3.7+4.0+3.6+3.8)/(5)=3.8](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mif4kzk27a62agougwer7yp88vt42kjx45.png)
We can conclude Able Cable offers the fastest mean downloading internet speed