New Mean and Variance

Question:

Start Quiz:

# Write a program to update your mean and variance
# when given the mean and variance of your belief
# and the mean and variance of your measurement.
# This program will update the parameters of your
# belief function.

def update(mean1, var1, mean2, var2):
    new_mean =
    new_var =
    return [new_mean, new_var]

print update(10.,8.,13., 2.)

User's Answer:

(Note: The answer done by the user is not guaranteed to be correct)

studentMain.py

# Write a program to update your mean and variance
# when given the mean and variance of your belief
# and the mean and variance of your measurement.
# This program will update the parameters of your
# belief function.

def update(mean1, var1, mean2, var2):
    new_mean = ((var2*mean1)+(var1*mean2))/(var1+var2)
    new_var = 1/((1/var1)+(1/var2))
    return [new_mean, new_var]

print update(10.,8.,13., 2.)

Solution:

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