6206 results.
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4 questions. Qualitative, quantitative random variables, types of sampling, frequencies, stem and leaf plot, descriptive statistics.
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7 questions on numeric fractions.
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6 questions on standard statistical distributions.
Binomial, Poisson, Normal, Uniform, Exponential.
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5 questions on vectors. Scalar product, angle between vectors, cross product, when are vectors perpendicular, combinations of vectors defined or not.
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4 questions involving hyperbolic functions.
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Implicit differentiation including finding tangents
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5 questions on using substitution to find indefinite integrals.
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4 questions on integrating by parts.
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4 questions on using partial fractions to solve indefinite integrals.
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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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Entering numbers and algebraic symbols in Numbas.
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Details on inputting numbers into Numbas.
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Information on inputting powers
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Inputting algebraic expressions into Numbas.
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Instructions on inputting ratios of algebraic expressions.
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Instructions on dealing with functions in Numbas.
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$A$ a $3 \times 3$ matrix. Using row operations on the augmented matrix $\left(A | I_3\right)$ reduce to $\left(I_3 | A^{-1}\right)$.
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Find the determinant and inverse of three $2 \times 2$ invertible matrices.
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Given a codeword in $w=\mathbb{Z}^4_3$ find and list all codewords at Hamming distance $1$ from $w$.
