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# Tutor profile: Sanjana R.

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Sanjana R.
Graduate student in Cellular and molecular biology at University of Texas at Dallas
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## Questions

### Subject:Set Theory

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Question:

Give the cardinality of set A and B defined by A = {a, b, c, d} and B = {1, 4, 7, 9, 10, 12, 23}

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Sanjana R.

Set A=4 Set B=7

### Subject:Biology

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Question:

what is the break up of the human body to the simplest compound?

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Sanjana R.

First, you notice the entire body. Next, you see that the entire body is made up of parts and organs, and each of those organs is made up of a variety of tissues. The human body’s tissues if viewed under a microscope, millions of cells become visible. Yet you can turn up the magnification for an even closer look: Cells contain molecules that are made up of even smaller components called atoms. within this cell is the nucleus which holds all the genetic information of the body in form of DNA. Mess with this and everything goes upside down.

### Subject:Statistics

TutorMe
Question:

Say you're on a game show where there are three doors. Behind two of the doors, there are goats. Behind one of the doors, there is a brand new car. The host says that once you pick a door, he'll open one of the doors you didn't pick to reveal a goat. Then, you have the option of either staying with your door or switching to the last unopened door. Do you switch or stay?

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Sanjana R.

It is statistically proven that if you switch your chances of winning the car are much higher! There is 2/3 chance of finding the car by opening of one of these doors. So the player's choice after the host opens a door is no different than if the host offered the player the option to switch from their original chosen door to the set of both remaining doors. The switch in this case clearly gives the player a 2/3 probability of choosing the car.

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