Page 499 - AI Ver 3.0 class 10_Flipbook
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22. Using NumPy package: Create an array of 5 marks and display the average of all marks.
Ans. [1]: import numpy as np
import statistics
a = np.array([95,90,49,71,80])
m = statistics.mean(a)
print("The average is: ", m)
The average is: 77
23. Create a list of number of voting done in 6 areas and calculate using statistics module:
Standard deviation
Variance
Ans. [1]: import statistics
votes = [59, 52, 49, 71, 44, 63]
std_dev = statistics.stdev(votes)
print("The standard deviation is:", round(std_dev, 2))
variance = statistics.variance(votes)
print("The variance is:", variance)
The standard deviation is: 9.91
The variance is: 98.26666666666667
24. Using the library: import cv2, matplotlib
Upload an image of your favourite food and display the picture in RGB color mode.
Ans. [1]: import cv2
from matplotlib import pyplot as plt
import numpy as np
img = cv2.imread('D:/Pasta.jpg')
plt.imshow(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
plt.title('My Favourite Food')
plt.axis('off')
plt.show
<function matplotlib.pyplot.show(close=None, block=None)>
My Favourite Food
25. Using the library: import cv2, matplotlib
Upload an image of your favourite pet and display the picture in grayscale mode.
Python Practical Questions 497

