6197 results.
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Question in Content created by Newcastle University
No description given
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Question in Content created by Newcastle University
Given descriptions of 3 random variables, decide whether or not each is from a Poisson or Binomial distribution.
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Question in Content created by Newcastle University
Simple probability question. Counting number of occurences of an event in a sample space with given size and finding the probability of the event.
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Question in Content created by Newcastle University
Given a table of the number of days in which sales were between £x1000 and £(x+1)1000 find the relative percentage frequencies of these volume of sales.
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Question in Content created by Newcastle University
Choosing whether given random variables are qualitative or quantitative.
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Question in Content created by Newcastle University
Deciding whether or not three sampling methods are simple random sampling, stratified sampling, systematic or judgemental sampling. Also whether or not the method of selection is random, quasi-random or non-random.
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Question in Content created by Newcastle University
Given random set of data (between 13 and 23 numbers all less than 100), find their stem-and-leaf plot.
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Question in Content created by Newcastle University
Find a regression equation.
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Question in Content created by Newcastle University
Finding probabilities from a survey giving a table of data on the alcohol consumption of males. This can be easily adapted to data from other types of surveys.
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Question in Content created by Newcastle University
Eight questions on finding least upper bounds and greatest lower bounds of various sets.
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Question in Content created by Newcastle University
Find a regression equation.
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Question in Content created by Newcastle University
Given data on probabilities of three levels of success of three options and projections of the profits that the options will accrue depending on the level of success, find the expected monetary value (EMV) for each option and choose the one with the greatest EMV.
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Question in Content created by Newcastle University
Create a truth table for a logical expression of the form $a \operatorname{op} b$ where $a, \;b$ can be the Boolean variables $p,\;q,\;\neg p,\;\neg q$ and $\operatorname{op}$ one of $\lor,\;\land,\;\to$.
For example $\neg q \to \neg p$.
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Question in Content created by Newcastle University
Create a truth table for a logical expression of the form $(a \operatorname{op1} b) \operatorname{op2}(c \operatorname{op3} d)$ where $a, \;b,\;c,\;d$ can be the Boolean variables $p,\;q,\;\neg p,\;\neg q$ and each of $\operatorname{op1},\;\operatorname{op2},\;\operatorname{op3}$ one of $\lor,\;\land,\;\to$.
For example: $(p \lor \neg q) \land(q \to \neg p)$.
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Question in Content created by Newcastle University
Create a truth table for a logical expression of the form $((a \operatorname{op1} b) \operatorname{op2}(c \operatorname{op3} d))\operatorname{op4}e $ where each of $a, \;b,\;c,\;d,\;e$ can be one the Boolean variables $p,\;q,\;\neg p,\;\neg q$ and each of $\operatorname{op1},\;\operatorname{op2},\;\operatorname{op3},\;\operatorname{op4}$ one of $\lor,\;\land,\;\to$.
For example: $((q \lor \neg p) \to (p \land \neg q)) \lor \neg q$
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Question in Content created by Newcastle University
Create a truth table for a logical expression of the form $((a \operatorname{op1} b) \operatorname{op2}(c \operatorname{op3} d))\operatorname{op4}(e \operatorname{op5} f) $ where each of $a, \;b,\;c,\;d,\;e,\;f$ can be one the Boolean variables $p,\;q,\;\neg p,\;\neg q$ and each of $\operatorname{op1},\;\operatorname{op2},\;\operatorname{op3},\;\operatorname{op4},\;\operatorname{op5}$ one of $\lor,\;\land,\;\to$.
For example: $((q \lor \neg p) \to (p \land \neg q)) \to (p \lor q)$
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Question in Content created by Newcastle University
Create a truth table for a logical expression of the form $((a \operatorname{op1} b) \operatorname{op2}(c \operatorname{op3} d))\operatorname{op4}e $ where each of $a, \;b,\;c,\;d,\;e$ can be one the Boolean variables $p,\;q,\;r,\;\neg p,\;\neg q,\;\neg r$ and each of $\operatorname{op1},\;\operatorname{op2},\;\operatorname{op3},\;\operatorname{op4}$ one of $\lor,\;\land,\;\to$.
For example: $((q \lor \neg r) \to (p \land \neg q)) \land \neg r$
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Exam (6 questions) in Content created by Newcastle University
One question on determining whether statements are propositions.
Four questions on find truth tables for various logical expressions.
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Exam (2 questions) in Content created by Newcastle University
Statistics and probability. 2 questions. Both simple regression. First with 8 data points, second with 10. Find $a$ and $b$ such that $Y=a+bX$. Then find the residual value for one of the data points.
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Question in Content created by Newcastle University
English sentences are given and for each the appropriate proposition involving quantifiers is to be chosen. Also choose whether the propositions are true or false.
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Question in Content created by Newcastle University
No description given
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Question in Content created by Newcastle University
No description given
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Question in Content created by Newcastle University
No description given
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Question in Content created by Newcastle University
Express various integers and rationals mod $\mathbb{Z}_3, \;\mathbb{Z}_5,\;\mathbb{Z}_7,\;\mathbb{Z}_{11}$
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Question in Content created by Newcastle University
Solving three simultaneous congruences using the Chinese Remainder Theorem:
\[\begin{eqnarray*} x\;&\equiv&\;b_1\;&\mod&\;n_1\\ x\;&\equiv&\;b_2\;&\mod&\;n_2\\x\;&\equiv&\;b_3\;&\mod&\;n_3 \end{eqnarray*} \] where $\operatorname{gcd}(n_1,n_2,n_3)=1$
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Question in Content created by Newcastle University
Find the determinant and inverse of three $2 \times 2$ invertible matrices.
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Question in Content created by Newcastle University
Power series solution of $y''+axy'+by=0$ about $x=0$.
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Question in Content created by Newcastle University
Two numbers are drawn at random without replacement from the numbers m to n.
Find the probability that both are odd given their sum is even.
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Question in Content created by Newcastle University
Find the solution of a constant coefficient second order ordinary differential equation of the form $ay''-by=0$. Distinct roots.
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Question in Content created by Newcastle University
Find the solution of a constant coefficient second order ordinary differential equation of the form $ay''+by'+cy=0$.