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Recent questions tagged events


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What is the side of the square which has 5 circles with 3cm radius?
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What is the side of the square which has 5 circles with 3cm radius? What is the side of the square which has 5 circles with 3cm radius?   ...
by Pieter Gold Status
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asked in Mathematics May 4
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What are the methods of assigning probabilities to events?
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Compute the variance of a die roll, i.e. a uniform random variable over the sample space \(\Omega=\{1,2,3,4,5,6\}\).

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When are two events A and B termed as independent?
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When are two events A and B termed as independent?When are two events A and B termed as independent? ...
by MathsGee Platinum
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asked in Data Science & Statistics Dec 15, 2021
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What are events in probability?
1 answer 91 views
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If an event occurs 2 times in 20 years, what is probability even will occur 2 times in a week?
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If an event occurs 2 times in 20 years, what is probability even will occur 2 times in a week?Hello! I need real life court room bound help. I'm trying to prove not only something happening twice in the same week, is highly improbable but the ...
by Gertrude Sexton
asked in Mathematics Nov 11, 2021
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Find \(a\) if \(b-a=c-d\).
1 answer 61 views
Find \(a\) if \(b-a=c-d\).Find \(a\) if \(b-a=c-d\). ...
by Student SIlver Status
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asked in Mathematics Sep 27, 2021
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A fair die is thrown five times; find the probability of obtaining a six three times.
1 answer 156 views
A fair die is thrown five times; find the probability of obtaining a six three times.(a) In a school, the ratio of those who passed to those who failed in a History test is \(4: 1\). If 7 students are selected at random from the school ...
by MathsGee Platinum
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asked in Mathematics Sep 12, 2021
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If \(\mathrm{P}=n^{2}+1: n=0,2,3\) and \(\mathrm{Q}=n+1: n=2,3,5\), find \(\mathrm{P} \cap \mathrm{Q}\).
1 answer 68 views
If \(\mathrm{P}=n^{2}+1: n=0,2,3\) and \(\mathrm{Q}=n+1: n=2,3,5\), find \(\mathrm{P} \cap \mathrm{Q}\).If \(\mathrm{P}=n^{2}+1: n=0,2,3\) and \(\mathrm{Q}=n+1: n=2,3,5\), find \(\mathrm{P} \cap \mathrm{Q}\). A. \(\{5,10\}\) B. \(\{4,6\}\) C. \(\{1,3\}\ ...
by MathsGee Platinum
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asked in Mathematics Sep 12, 2021
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Given the table above as the result of tossing a fair die 150 times, find the mode.
1 answer 98 views
Given the table above as the result of tossing a fair die 150 times, find the mode.\begin{align} \begin{array}{|l|l|l|l|l|l|l|} \hline \text { Face } & 1 & 2 & 3 & 4 & 5 & 6 \\ \hline \text { Frequency } & ...
by MathsGee Platinum
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asked in Mathematics Sep 12, 2021
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Given the table above as the results of tossing a fair die 150 times. Find the probability of obtaining a 5 .
1 answer 120 views
Given the table above as the results of tossing a fair die 150 times. Find the probability of obtaining a 5 .\begin{array}{|l|l|l|l|l|l|l|} \hline \text { Face } & 1 & 2 & 3 & 4 & 5 & 6 \\ \hline \text { Frequency } & 12 & 18 & ...
by MathsGee Platinum
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asked in Mathematics Sep 12, 2021
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A sample of size 40 yields the following sorted data. Note that I have $x$ -ed out $x_{(39)}$ (the second largest number).
1 answer 391 views
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what is the probability you will have at least two competing offers by the end of that month?
1 answer 93 views
what is the probability you will have at least two competing offers by the end of that month?When you are searching for a new job, it is always helpful to have more than one offer on the table so you can use it in negotiations. If you have a 1 ...
by MathsGee Platinum
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asked in Data Science & Statistics Aug 3, 2021
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How do I compute the probability of mutually exclusive events?
1 answer 309 views
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What is the formula for probability of the union of two events?
1 answer 716 views
What is the formula for probability of the union of two events?What is the formula for probability of the union of two events? ...
by MathsGee Platinum
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asked in Data Science & Statistics Jul 29, 2021
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How do I compute the probability of the union of two events?
1 answer 138 views
How do I compute the probability of the union of two events?How do I compute the probability of the union of two events? ...
by MathsGee Platinum
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asked in Data Science & Statistics Jul 29, 2021
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The division of two natural numbers will always result in what type of number?
0 answers 101 views
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Is there an easy way to remember the events of meiosis?
1 answer 219 views
Is there an easy way to remember the events of meiosis?Is there an easy way to remember the events of meiosis? ...
by MathsGee Platinum
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asked in Life Sciences Jul 28, 2021
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Combine terms: $12 a+26 b-4 b-16 a$
1 answer 352 views
Combine terms: $12 a+26 b-4 b-16 a$Combine terms: $12 a+26 b-4 b-16 a$ (a) $4 \mathbf{a}+\mathbf{2 2 b}$, (b) $-28 a+30 b$ (c) $-4 a+22 b$ (d) $28 a+30 b$. ...
by MathsGee Platinum
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asked in Mathematics Jul 16, 2021
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Given: $\quad B<C$ $B<D<A$ Which of the following expressions is necessarily true?
1 answer 137 views
Given: $\quad B<C$ $B<D<A$ Which of the following expressions is necessarily true?Given: $\quad B&lt;C$ $B&lt;D&lt;A$ Which of the following expressions is necessarily true? (1) $\quad C&lt;D$ (2) $\mathrm{D}&lt;\mathrm{C}$ (3) $\ma ...
by MathsGee Platinum
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asked in Mathematics May 30, 2021
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What is the probability that the fourth hat that he takes out at random will also be black?
1 answer 101 views
What is the probability that the fourth hat that he takes out at random will also be black?There are 20 white hats and 13 black hats in a box. Jack randomly took 3 hats (in succession) out of the box and did not put them back in the box. All ...
by MathsGee Platinum
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asked in Mathematics May 30, 2021
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Suppose that of $1,000,000$ live births in Paris over some period, 508,000 are boys.
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Suppose that of $1,000,000$ live births in Paris over some period, 508,000 are boys.Suppose that of $1,000,000$ live births in Paris over some period, 508,000 are boys. Suppose $X$ is $\operatorname{Bin}\left(10^{6}, 0.5\right)$ and c ...
by MathsGee Platinum
(118,646 points)
asked in Data Science & Statistics May 30, 2021
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What is the $P(X \geq 10) ?$ Let $Y$ denote the count over a separate period of $1.5$ seconds. What is $P(Y \geq 10) ?$ What is $P(X+Y \geq 10)$ ?

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Two events $\mathrm{A}$ and $\mathrm{B}$ are such that $\mathrm{P}(A)=0.5, \mathrm{P}(B)=0.3$ and $\mathrm{P}(A \cap B)=0.1 .$
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Let $A, B$ and $C$ be any three events. Draw Venn diagrams to deduce that
0 answers 114 views
Let $A, B$ and $C$ be any three events. Draw Venn diagrams to deduce thatLet $A, B$ and $C$ be any three events. Draw Venn diagrams to deduce that (a) $A \cap(B \cup C)=(A \cap B) \cup(A \cap C)$; (b) $(A \cap B)^{\prime} ...
by MathsGee Platinum
(118,646 points)
asked in Data Science & Statistics May 30, 2021
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I have in my pocket ten coins. Nine of them are ordinary coins with equal chances of coming up head and tail when tossed and the tenth has two heads.

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Show that  $P(A$ or $B)=P(A)+P(B)-P(A$ and $B)$
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Show that  $P(A$ or $B)=P(A)+P(B)-P(A$ and $B)$Show that &nbsp;$P(A$ or $B)=P(A)+P(B)-P(A$ and $B)$ ...
by MathsGee Platinum
(118,646 points)
asked in Mathematics May 26, 2021
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Calculate the probability that there will be at least four months in which no accidents occur before the fourth month in which at least one accident occurs.

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What is the probability of $A, P(A) ?$ What is the probability of $A$ given $B, P(A \mid B) ?$
1 answer 137 views
What is the probability of $A, P(A) ?$ What is the probability of $A$ given $B, P(A \mid B) ?$I roll a fair die. Let $A$ be the event that the outcome is an odd number, i.e., $A=\{1,3,5\} .$ Also let $B$ be the event that the outcome is less th ...
by Student SIlver Status
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asked in Data Science & Statistics May 23, 2021
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You roll a fair die. What is the probability of $E=\{1,5\} ?$
1 answer 591 views
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WHen are two sets mutually exclusive or disjoint?
1 answer 181 views
WHen are two sets mutually exclusive or disjoint?WHen are two sets mutually exclusive or disjoint? ...
by MathsGee Platinum
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asked in Mathematics May 22, 2021
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What is the complement of a set A?
1 answer 312 views
What is the complement of a set A?What is the complement of a set A? ...
by MathsGee Platinum
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asked in Mathematics May 22, 2021
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If $P (E)$ denotes the probability of an event $E$, then
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Three coins were tossed 200 times. The number of times 2 heads came up is 72. Then the probability of 2 heads coming up is:
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The events which are affected by other events are called
0 answers 95 views
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If the events have the same theoretical probability of happening, then they are called

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The complement of the probability of an event $A$ written as $P(A)$ is
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What is the probability that the urn was Urn I given that the ball chosen was white?
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What is the probability that the urn was Urn I given that the ball chosen was white?Suppose that Urn I is chosen with probability $\frac{1}{2}$ and Urn II is also chosen with probability $\frac{1}{2}$. Suppose that Urn I has 5 white b ...
by Student SIlver Status
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asked in Data Science & Statistics May 9, 2021
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If B is 4, C is 9 and D is 16. Find the sum A+C+E?
1 answer 97 views
If B is 4, C is 9 and D is 16. Find the sum A+C+E?If B is 4, C is 9 and D is 16. Find the sum &nbsp;A+C+E? ...
by MathsGee Platinum
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asked in Mathematics Apr 8, 2021
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What are probabilities?
1 answer 130 views
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Why do people over-estimate the odds of improbable events?
0 answers 116 views
Why do people over-estimate the odds of improbable events?Why do people over-estimate the odds of improbable events? ...
by MathsGee Platinum
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asked in Economics and Finance Feb 28, 2021
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