Let the random variable X be the number of days that Spongebob needs to be in STAT107's office hour to do his project 1. Suppose X has the distribution as follows; P(X) 0.16 0.2 You can find it 0.36 Find the standard deviation of days Spongebob needs to be in the office hour SD(X). You can express your answer as a fraction, or a decimal. If you asnwer in decimal, include at least 2 NON-ZERO digits after the decimal point.