124 results authored by Julie Crowley  search across all users.

Exam (5 questions) in Julie's workspace
Matrix addition, multiplication. Finding inverse. Determinants. Systems of equations.
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Question in Julie's workspace
Practice use of summation notation for regression question.
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Question in Julie's workspace
$X \sim \operatorname{Binomial}(n,p)$. Find $P(X=a)$, $P(X \leq b)$, $E[X],\;\operatorname{Var}(X)$.
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Question in Julie's workspace
Application of the Poisson distribution given expected number of events per interval.
Finding probabilities using the Poisson distribution.
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Question in Julie's workspace
Given a graph of a line of the form $y=ax+b$ where $a$ and $b$ are integers, find the equation of the line.

Exam (25 questions) in MATH6002 Calculus and Statistics for the Biological Sciences
Basic indefinite integrals, Basic definite integrals, integration by substitution
Missing: Area type question, solving diff eq application

Exam (12 questions) in Maths Online
Differentiation of polynomials, cos, sin, exp, log functions. Product, quotient and chain rules.
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Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.

Exam (5 questions) in MATH7011 Maths for Digital Systems
First and second order recurrence equations, homogenous and nonhomogenous

Question in JP
Find the stationary points of the function: $f(x,y)=a x ^ 3 + b x ^ 2 y + c y ^ 2 x + dy$ by choosing from a list of points.

Exam (12 questions) in MATH6002 Calculus and Statistics for the Biological Sciences
Differentiation of polynomials, cos, sin, exp, log functions. Product, quotient and chain rules.
Missing: Application with bacteria, turning points, difficult chain rule

Exam (18 questions) in Julie's workspace
Transposition of formulae. Changing the subject of an equation.
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Question in Julie's workspace
Given random set of data (between 13 and 23 numbers all less than 100), find their stemandleaf plot.
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Question in Julie's workspace
Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.
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Question in Julie's workspace
Simple ratio question with custom marking and partial credit possible

Question in Julie's workspace
Scores in 20 games and frequency given  calculate mean.
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Question in Julie's workspace
Scores in 20 games and frequency given  calculate mean.
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Question in MATH6057
Mean, median and mode from a frequency table with classes 1(b)
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Question in MATH6057
Topics covered are calculating the mean, median, mode and standard deviation.
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Question in Julie's workspace
Mean, median and mode from a frequency table with classes 1(b)
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Calculate the Pearson correlation coefficient on paired data and comment on the significance.
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Compare two savings accounts with different interest rates.
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Question in Julie's workspace
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 $\neg q \to \neg p$.

Question in Julie's workspace
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 $\neg q \to \neg p$.

Question in Julie's workspace
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 $\neg q \to \neg p$.

Question in Julie's workspace
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 $\neg q \to \neg p$.

Question in Julie's workspace
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 $\neg q \to \neg p$.

Question in Julie's workspace
Students enter equation and turning point

Question in Julie's workspace
Another transposition question, which requires (basic) factorisation.
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Question in MATH6057
Another transposition question, which requires (basic) factorisation.
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