Acustomer service survey was conducted of 500 customers: 250 men and 250 women. the data on one of the questions show that 175 men and 160 women rate the customer service as excellent. what percentage of men gave an excellent rating? what percentage of women gave an excellent rating? what was the total percentage of customers giving an excellent rating?

men 70% women 64%

Step-by-step explanation:

Given that men and women were selected, either had the option of giving the customer service an excellent rating or not. As such , where there were 250 men and 175 men gave an excellent rating, this represents

= 175/250 × 100%

=70%

It means 70% of the men gave an excellent rating.

Likewise, where there were 250 women and 160 women rate the customer service as excellent. This represents

= 160/250 × 100%

=64%

It means 64% of the women gave an excellent rating.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages