When max talked to his friend jessica about his undergraduate experience at the university of minnesota, he said he believed that most of the students at um majored in psychology. max concluded this because when he thought about kinds of majors, he thought about his friends and most of whom were psychology majors. so max has made a judgment based on how easily he could think of examples. this reasoning error is known as the
select one:

a. the either-or fallacy
b. representativeness heuristic
c. availability heuristic
d. the bandwagon fallacy

c. Availability heuristic

Explanation:

When we make decisions based on the first infomation that becomes available in our mind this is referred to as availability heuristic. It allows us to take a short cut to get there however it may result to us making wrong conclusion about certain things.

If you can think of more cases of something more than you can think of the cases of the other thing you are likely to think that the one which you are able to think of more cases is more prevalent than this other one, which may not be the case , it may only be because you are only able to recall more cases of that one than you do with the other issue.

In this case you use availability heuristic to make incorrect conclusion.

You may overestimate the likelihood of something happening just because you judged it based on how many cases popped in your mind when you thought about it.

Max concludes that most undergraduates major in Psychology based on the fact that multiple number of his friends who majored in Psychology come into his mind however this is not the presentation of the vast population of students. He uses that available information to make incorrect conclusion

clearcutting reproduces a new even-aged stand by completely removing the mature stand.

clearcutting as a silvicultural treatment has several characteristics:

it causes a sudden environmental change

it removes the seed source from the regeneration area

the configuration of the clearcut may affect seed dispersal

it begins a new rotation

it will eliminate some pests that require forest cover

overall, it temporarily removes the forest cover, transforming the forest community and environment.

clearcutting followed by artificial (seeded or planted) regeneration has several advantages:

we can avoid delay in restocking the site

we can introduce a selected species, seed source, and genotype

we can control arrangement and spacing

we can achieve uniformity in the new stand

we can overcome the problems associated with securing sufficient natural regeneration.

the shelterwood method involves the removal of most of the mature stand at the end of the rotation, but a portion of the mature stand is left standing.   the shelterwood method serves three basic purposes:

to prepare the stand for production of abundant seed

to modify the environment in a way that promotes germination and survival of the selected species

to build up the amount and size of advance regeneration to ensure the prompt restocking of the new stand following overstory removal.

the shelterwood method involves a sequence of 3 cuttings:

preparatory cuttings: make the seed trees more vigorous and set the stage for regeneration. see our thinning page for more information.

establishment/seed cuttings: open up enough vacant growing space to allow establishment of the new regeneration.

removal cuttings: uncover the new crop to allow it to fill the growing space.

the residual trees in the shelterwood must:

be sturdy and windfirm

be able to survive exposure

flower and reproduce seed

be the best trees of the mature stand

keep in mind that the shelter trees must not occupy the entire site.   a void must be created in order to make room for the new regeneration. the amount of shelter to leave will depend on the following factors:

species characteristics (seeding and shelter requirements)

the number of cuttings in the cutting sequence (1, 2, or 3)

landowner objectives

the size of the area to be regenerated

the final removal harvest level required to be profitable

the shelter must be removed before it impedes the growth of the new stand or threatens its survival.

it all depends on how long the hours are. i think they wouldn't approve of it. in my opinion.