A sociologist wants to know the opinions of students about online education. He obtains a list of 825 students who have completed an online course recently and mails a questionnaire to a randomly selected group of 150 of these students. Only 67 of the questionnaires are returned. Identify the population and the sample in this study. (4 points) a
The population is 825 and the sample is 67.

b
The population is 150 and the sample is 67.

c
The population is 825 and the sample is 150.

d
The population is 67 and the sample is 825.

e
The population is 150 and the sample is 825.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

47

step-by-step explanation:

the forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

-320.44 is the maximum temperature at which nitrogen is a liquid.

-346 is the minimum temperature at which nitrogen is a liquid.