Gaining admittance into medical school is a difficult task. Researchers want to know if more students who complete a graduate degree gain admission into medical school than those who do not. They compare the number of students who were admitted who had a master’s degree with those who did not. A detailed analysis of the data is carried out to arrive at a conclusion.

What type of a research study is this?

a survey
an experiment
an observational study
a controlled study

a survey

Step-by-step explanation:

They compare the number of students who were admitted who had a master’s degree with those who did not

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get

the first option i believe

step-by-step explanation: