An evaluation team wants to find out HS opinions about an anti bullying program. The researcher randomly selects 50 freshman, 50 sophomores, Juniors, and seniors. The evaluators are using what type of sampling method

Stratified sampling

Step-by-step explanation:

Stratified random Sampling Method

Step-by-step explanation:

The stratified random sampling is a sampling method that is used when working on a population that has different characteristics. The population is grouped according to who they are, the things they do in common, or what they have in common. These subgroups are called strata and it helps the researcher to get accurate result void of generalization.

The researcher in question, groups the population into a subgroup of 50 to get a more direct and accurate result, this method of sampling is the stratified random sampling method.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

the answer would be 0.54