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#USN:01fe15bcs237
#Assignment_2
#Roll244

import tensorflow as tf
x=tf.constant([1.1,2.2,3.3,4.4])
y=tf.constant([2.2,3.3,4.4,5.5])

mean_x=tf.reduce_mean(x)
mean_y=tf.reduce_mean(y)

ss=tf.Session()
print (ss.run(mean_x))
print (ss.run(mean_y))

#var_x=tf.nn.weighted_moments(x,,mean_x)
x_x=tf.subtract(x,mean_x)


y_y=tf.subtract(y,mean_y)


sqr1=tf.square(x_x)

sqr2=tf.square(y_y)


var1=tf.reduce_sum(sqr1)

var2=tf.reduce_sum(sqr2)

print (ss.run(var1))

print (ss.run(var2))

tmp=tf.multiply(x_x,y_y)
cov=tf.reduce_sum(tmp)
print (ss.run(cov))


m=tf.div(cov,var1)
print (ss.run(m))

tmp2=tf.multiply(m,mean_x)
c=tf.subtract(mean_y,tmp2)
print (ss.run(c))


    

    




2.75
3.85
6.05
6.05
6.05
1.0
1.1

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