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K Split X's questions - English 1answer
235 questions.
Questions
Answers
What is the expected result for the number of heads obtained in this coin/dice flipping example?
1
1
answers,
0
favourites,
35
views
probability
summation
binomial-distribution
expected-value
Calculate $\lim_{(x,y)\to(0,0)}\tan(x)\sin(\frac1{|x|+|y|})$
8
1
answers,
3
favourites,
194
views
real-analysis
limits
multivariable-calculus
trigonometry
Find the value of $C$ so that the integral is a density
0
answers,
0
favourites,
18
views
probability
integration
normal-distribution
Prove that there does not exist a largest natural number
2
4
answers,
1
favourites,
2.301
views
number-theory
discrete-mathematics
Find all $(x,y)$ for which $f(x,y)$ is continuous
1
3
answers,
0
favourites,
48
views
calculus
limits
multivariable-calculus
What is the probability that a red ball will be selected?
2
1
answers,
0
favourites,
51
views
probability
probability-theory
statistics
A box contains 10 balls, which are 6 W and 4 B. Assume you pick one by one, without replacement
5
1
answers,
1
favourites,
124
views
probability
statistics
probability-distributions
Confusion about discrete distrubition evaluation
1
0
answers,
0
favourites,
23
views
probability
probability-distributions
Urn probability with replacement
2
0
answers,
0
favourites,
41
views
probability
probability-theory
proof-verification
probability-distributions
Suppose that a bowl contains 100 chips: 30 are labelled 1, 20 are labelled 2, and 50 are labelled 3.
3
2
answers,
0
favourites,
38
views
probability
probability-theory
Suppose the sample space S is finite. Is it possible to define an unbounded random variable on S?
1
answers,
0
favourites,
28
views
probability
probability-theory
statistics
Prove $A$ is independent of $B$ iff $A^C$ is independent of $B$
1
answers,
0
favourites,
16
views
probability
elementary-set-theory
What is the conditional probability that the number of heads equals the number showing on the die, conditional on knowing that the die showed 1?
2
2
answers,
0
favourites,
92
views
probability
statistics
conditional-probability
5 cards are chosen from a standard deck. What is the probability that we get all four aces, plus the king of spades?
13
5
answers,
1
favourites,
3.052
views
probability
combinatorics
statistics
discrete-mathematics
What is the conditional probability that the first die shows 5, conditional on the event that exactly three dice show 5?
1
3
answers,
0
favourites,
133
views
probability
discrete-mathematics
conditional-probability
Rolling three dice. Probability that two of them show the same value, but third does not
1
answers,
0
favourites,
40
views
probability
statistics
What is the probability that I have watched neither news?
1
answers,
0
favourites,
22
views
probability
If $S=\{1,2,3\}$ and $P(\{1,2\}) = 1/3$ and $P(\{2,3\})=2/3$, what is $P(\{1\}),P(\{2\}),P(\{3\})$
1
answers,
0
favourites,
23
views
probability
statistics
Evaluate $\lim\limits_{(x,y)\to(0,0)}\frac{(x+y)^2}{x^2+y^2}$
4
2
answers,
0
favourites,
170
views
limits
multivariable-calculus
polar-coordinates
Why do we care about the fact that a series converges, but not what it converges to?
3
answers,
0
favourites,
280
views
calculus
sequences-and-series
convergence
In the $3D$ plane, how is $z$ always the “vertical” axis?
3
answers,
0
favourites,
64
views
soft-question
Find the volume of the solid bounded by $x=\sqrt{y^2+z^2}$ and $x=6-y^2-z^2$
3
4
answers,
0
favourites,
57
views
calculus
integration
multivariable-calculus
polar-coordinates
Calculate the area of the region bounded by $z=0, z=1,$, and $(z+1)\sqrt{x^2+y^2}=1$
2
2
answers,
0
favourites,
34
views
calculus
integration
multivariable-calculus
Convert the double integral into polar
1
2
answers,
0
favourites,
32
views
calculus
integration
multivariable-calculus
polar-coordinates
wolfram-alpha
Convert this integral to polar coordinates
1
3
answers,
0
favourites,
45
views
calculus
integration
multivariable-calculus
polar-coordinates
Evaluate $\iint_{D}e^\frac{x+y}{x-y}$ on the region $D$ using a change of variables
1
2
answers,
1
favourites,
44
views
calculus
integration
multivariable-calculus
change-of-variable
Rewrite $\int_{0}^{1}\int_{-\sqrt{y-y^2}}^{0}(x^2+y^2)\,\text{d}x \, \text{d}y$ in polar
4
1
answers,
0
favourites,
49
views
calculus
integration
multivariable-calculus
definite-integrals
polar-coordinates
Calculate $\int_{D}||\nabla f||^2 dA$, where $f(x,y)=y-x^2+1$, and $D$ is this region
3
answers,
0
favourites,
27
views
calculus
integration
multivariable-calculus
area
volume
Find $\frac{\partial z}{\partial t}$ for $f(x_1,x_2,x_3,x_4)$ using the chain rule
1
1
answers,
0
favourites,
39
views
calculus
multivariable-calculus
partial-derivative
chain-rule
Find a basis for $W$
1
answers,
0
favourites,
43
views
linear-algebra
1
2
3
4
5
...
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