The answer is -80, i have done all the math and -80 is the answer
Answer:
Variance = 4.68
Step-by-step explanation:
The formula for the variance is:

Where:

The mean can be calculated as each value multiplied by its probability


Replacing the mean and the summatory of X:

Answer:
3 times 5 times 8 = Japanese food times 62 = Volcanoes + 10⁶ = 6.79990