Recent questions tagged multiple-selects

3 3 votes
2 2 answers
518
518 views
 Which of the following state equations is/are correct for the given circuit?$\mathrm{A}=\mathrm{BC}$$\mathrm{B}=\mathrm{BC}+\mathrm{B}^{\prime} \mathrm{C}^{\prime}$$\mat...
4 4 votes
4 4 answers
493
493 views
Which of the following relations between the set $\mathbb{N}$ (natural numbers) and the set $\{\mathbb{N}, \mathbb{R}\}$ are true?Select all that apply.$\mathbb{N} \in\{\...
2 2 votes
5 5 answers
772
772 views
For all sets $A$ and $B$, which of the following are equal to $A$ ? Select all that apply.$(A-B)-A$$A-(B-A)$$(A \Delta B) \Delta A$$A \Delta(B \Delta A)$
5 5 votes
7 7 answers
833
833 views
Which of the following is/are boolean algebra property?$\mathrm{a}+\mathrm{b}=\mathrm{b}+\mathrm{a}$$(\mathrm{a} \bullet \mathrm{b})^{\prime}=\mathrm{a}^{\prime}+\mathrm{...
3 3 votes
2 2 answers
515
515 views
Let $m>1$ and $n>1$ be integers. Let $A$ be an $m \times n$ matrix such that for some $m \times 1$ matrix $b_1$, the equation $A x=b_1$ has infinitely many solutions. Let...
1 1 vote
3 3 answers
609
609 views
Let $A$ be an $n \times n$ matrix with characteristic polynomial $-\lambda(\lambda-1)^2$.Which of the following can be true:-A. $\operatorname{Rank}(A)=0$B. $\operatorna...
0 0 votes
1 1 answer
337
337 views
Let n be a natural number; arr[n] is an n-size array.A is the minimum number of comparisons required to get the minimum and maximum of arrwhen n is odd.B is the minimum n...
0 0 votes
1 1 answer
374
374 views
Consider the following FD Set: (PQR, QPR, R→ PQ) which of the following is/are the minimal cover for the above FD set? [MSQ] A. PQQR, R→ P B. PR, QR, R→ PQ C. QP, PR...
0 0 votes
0 0 answers
221
221 views
Which statements are true of Gaussian discriminant analysis for two-class classification, specifically quadratic discrimimemt analysis (QDA) and linear discriminant analy...
0 0 votes
0 0 answers
237
237 views
Which one of the following statements on initialization is false?The variances of layer outputs remain unchanged during training when Xavier initialization is used.Initia...
0 0 votes
1 1 answer
249
249 views
Which of the options are correct, select all that apply ?Maximum value of local gradient when sigmoid is used as an activation function is 0.5.Minimum value of local grad...
0 0 votes
1 1 answer
234
234 views
Which of the options are correct, select all that apply?You are solving a binary classification task, and the final two layers in your network are a ReLU activation follo...
0 0 votes
0 0 answers
223
223 views
Which of the following languages over Σ = {a, b} is/are regular? A. { wxwʳ | w, x ∈ {a, b}⁺ } B. { wxw | w, x ∈ {a, b}⁺ } C. { wxwy | w, x, y ∈ {a, b}⁺ } D. { xwyw | w, x...
0 0 votes
0 0 answers
160
160 views
Can a neural network be used to model the following machine learning algorithms?Linear regressionLogistic regressionK-nearest neighbour 123None
1 1 vote
0 0 answers
163
163 views
Suppose a d-dimensional dataset is reduced to $\mathbb{R}^3$ with PCA. Suppose the covariance matrix of the new dataset is computed. Which of the below could possibly be ...
0 0 votes
1 1 answer
193
193 views
Answer the same questions for the following dataset:$$\begin{bmatrix} 1 & 1 \\ 1.5 & 1.5 \\ -2 & 2 \\ 4 & -4 \\ 6 & -6 \\ 2 & 2 \end{bmatrix}$$What are the first $v_1$ a...
1 1 vote
1 1 answer
235
235 views
Data points in the 2-d space: $(-1, -1), (0,0), (1,1)$What is the first principal component?If we project the original data points into the 1-d subspace by the principal ...
0 0 votes
0 0 answers
129
129 views
Consider a centered design matrix $X \in \mathbb{R}^{n \times d}$, where $X_i \in \mathbb{R}^d$ is the $i$-th sample point (a column vector) and $X_i^{\top}$ is the $i$-t...