Answer:
a) 70%, 64%, 67%
Explanation:
Total customers surveyed = 500
Number of men = 250
Number of women = 250
Number of men who rated the customer service excellent = 175
Number of women who rated the customer service excellent = 160
Total number of customers who rated the customer service excellent =
![175+160 =335](https://img.qammunity.org/2020/formulas/mathematics/middle-school/esaya3ne5wfoodmq3r7swa1y5257l6x7r6.png)
Percentage of men who rated the customer service excellent
⇒
![\frac{\textrm{Number of men who rated excelent}}{\textrm{Total number of men}}* 100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/mu55zrkttyi7ipho7rmsuc4w7vszzvdwl9.png)
⇒
![(175)/(250)* 100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kem6n7il25hcy6jj22uvlxa59wj80g0zyl.png)
⇒ 70%
Percentage of women who rated the customer service excellent
⇒
![\frac{\textrm{Number of women who rated excelent}}{\textrm{Total number of men}}* 100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6yzhy5uhnl4lc9fq3ynfmg8rxy5ubvxrj5.png)
⇒
![(160)/(250)* 100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/f0nhhaxk71crhqtnfnhpz88zdg1jq7za13.png)
⇒ 64%
Percentage of customers who rated the customer service excellent
⇒
![\frac{\textrm{Number of customers who rated excelent}}{\textrm{Total number of men}}* 100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7zd04hawu1c8rnaxa6rnbe7c7kzc4rzfac.png)
⇒
![(335)/(500)* 100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/z1rp58ppnjxbtjhhqa3cb10dr4seqxmops.png)
⇒ 67%
So, the correct order is : 70%, 64%, 67% (Answer)