The document includes a series of questions regarding commonly used MATLAB functions, their purposes, and related operations, such as importing data, performing analysis, and creating visual representations. Each question features multiple-choice answers covering functions like 'readtable', 'find', 'histogram', and others. Contact details for MATLAB assignment assistance are also provided throughout the document.

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2. Which MATLAB function is commonly used to import data from external files into
MATLAB?
a) readtable
b) importdata
c) load
d) csvread
What is the purpose of the "find" function in MATLAB?
a) To locate and return indices of nonzero elements in an array.
b) To search for specific strings in a cell array.
c) To find the maximum value in an array. d) To identify and remove outliers from a
dataset.
In MATLAB, which function is used to calculate the correlation coefficient between two
datasets?
a) corrcoef
b) cov
c) corr
d) crosscorr
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3. What is the purpose of the "histogram" function in MATLAB?
a) To calculate descriptive statistics of a dataset.
b) To create a graphical representation of the distribution of a dataset.
c) To compute the cumulative distribution function of a dataset.
d) To perform hypothesis testing on a dataset.
Which MATLAB function is used to perform linear regression analysis?
a) polyfit
b) regress
c) lasso
d) pca
Which MATLAB function is used to perform principal component analysis (PCA)?
a) eig
b) pca
c) svd
d) eigenvector
What does the "boxplot" function in MATLAB display?
a) The minimum, maximum, and mean values of a dataset.
b) The quartiles and outliers of a dataset.
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4. c) The frequency distribution of a dataset.
d) The scatter plot of two variables.
Which MATLAB function is used to calculate the Fast Fourier Transform (FFT) of a signal?
a) fft
b) dft
c) ifft
d) fftshift
In MATLAB, which function is used to perform image processing tasks such as filtering and
edge detection?
a) imread
b) imwrite
c) imfilter
d) imresize
What is the purpose of the "heatmap" function in MATLAB?
a) To create a visual representation of data using a color map.
b) To perform hierarchical clustering on a dataset.
c) To plot the heat distribution of a thermal image.
d) To calculate and visualize the density of points in a scatter plot.
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