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on 11-Sep-2018 (Tue)

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Annotation 1454980599052

Cells of the nervous system ● These fall broadly into two categories ○ Neurons: the excitable cells of the nervous system. ○ Glia: intimately associated with neurons, support neuronal function.
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Annotation 1454983482636

Others: endothelial and ependymal cells, fibroblasts ○ Endothelial cells form the blood vessels within the brain. ○ Ependymal cells line the ventricles ○ Fibroblast cells are in the meninges
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Annotation 1497600494860

#ytt #ytt-2 #ytt-2-tilinpäätösanalyysi_omistajan_näkökulmasta #ytt-2.2-tilinpäätösanalyysi_osana_yrityksen_arvon_määritystä
tilinpäätösnormistot ja niiden tulkinnat vääristävät tilinpäätöksiä. Haasteena näissä epäkohdissa on se, ettei ulkopuolisella arvioitsijalla ole useinkaan riittäviä tietoja näiden epäkohtien eliminoimiseen
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Annotation 3290166070540

Cells of the nervous system ● These fall broadly into two categories ○ Neurons: the excitable cells of the nervous system. ○ Glia: intimately associated with neurons, support neuronal function.
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Flashcard 3307108437260

Tags
#has-images
Question
What is the formula for the variance and the Standard Deviation of a given value in a sample?


Answer
Which means : (sum of squares - (square of the sum/number of items))/(number of items - 1)

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Flashcard 3307114728716

Question
How to draw a frequency distribution table?
Answer
1. Subtract the minimum data value from the maximum data value and divide by the number of classes (NCLASS) you
chose (between 5 and 20, so you have a few items in each class).
2. Step 1 rounded up gives you the class width. Add class width NCLASS times to the minimum value so you have the lower limits of your classes. The upper limits = lower limits + class width -1
3. Count how many values there is in each class

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Flashcard 3307230858508

Question
A left-skewed distribution has a mean of 4.99 and a standard deviation of 3.13. Use Chebyshev’s Theorem to calculate the proportion of observation you would expect to find within two standard deviations (in other words, between -2 and +2 standard deviations) from the mean
Answer
1-1/(number of SD)^2 = 75%

The mean has no effect on Chebyshev's ! Results can be inaccurate in some cases

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Flashcard 3307238460684

Tags
#has-images
Question
Find the probability of selecting a person at random : At a school board meeting there are 9 parents and 5 teachers. 2 teachers and 5 parents are female. If a person at the school board meeting is selected at random, find the probability that the person is a parent or a female.


Answer
Then add up the probabilities: (9+7)/14 =16/14. And subtract the intersection of probability [FEMALE AND TEACHER] not to count it twice

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Flashcard 3307240819980

Question
Figure out the odds of getting certain cards drawn from a deck : a certain number card (i.e. a 7) or one from a certain suit (i.e. a club).
Answer
we’ve been asked the probability of a club or a 7 so we’re going to mark all the clubs and all the sevens:
hearts: 2, 3, 4, 5, 6, 7 , 8, 9, 10, J, Q, K, A
clubs: 2, 3, 4, 5, 6, 7, 8, 9, 10, J , Q , K , A
spades: 2, 3, 4, 5, 6, 7 , 8, 9, 10, J, Q, K, A
diamonds: 2, 3, 4, 5, 6, 7 , 8, 9, 10, J, Q, K, A

This totals 16 cards.

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Annotation 3307510566156

#test
A similar situation happens with two rotating inertias, each of which is individually modeled using the angle of rotation and the angular velocity. Two states will disappear when the inertias are joined by a rigid shaft. This difficulty can be avoided by replacing differential equations by differential algebraic equations, which have the form F(z, ˙z) = 0, where z ∈ R n . A simple special case is ˙x = f (x, y), g(x, y) = 0, (2.4) where z = (x, y) and F = ( ˙x − f (x, y), g(x, y)). The key property is that the derivative ˙z is not given explicitl
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Annotation 3307512401164

#test
Modelica
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Annotation 3307515809036

#test
State models or ordinary differential equations are not suitable for component- based modeling of this form because states may disappear when components are connected.
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Flashcard 3307517381900

Tags
#test
Question
[...] or ordinary differential equations are not suitable for component- based modeling of this form because states may disappear when components are connected.
Answer
State models

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State models or ordinary differential equations are not suitable for component- based modeling of this form because states may disappear when components are connected.

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Flashcard 3307518954764

Tags
#test
Question
State models or [...] are not suitable for component- based modeling of this form because states may disappear when components are connected.
Answer
ordinary differential equations

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State models or ordinary differential equations are not suitable for component- based modeling of this form because states may disappear when components are connected.

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Flashcard 3307520527628

Question
If P(A) = .20, P(B) =. 35 , and (A U B) = . 51, then are A and B mutually exclusive?
Answer
No because .20 + .35 = .55 is different from .55

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Flashcard 3307524984076

Question
How to tell the difference between a dependent and independent event?
Answer
1. Is it possible for the events to occur in any order?
2. Does one event in any wa y affect the outcome (or the odds) of the other event?

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Flashcard 3307531537676

Question
Determining if a question concerns a binomial experiment involves asking four questions about the problem, which are :
Answer
Step 1: Are there a fixed number of trials?
Step 2: Are there only 2 possible outcomes?
Step 3: Are the outcomes independent of each other? In other words, does the outcome of one trial (or one toss, or one question) affect another trial?
Step 4:Does the probability of success remain the same for each trial?

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