The probability distribution for the number of students in Statistics classes offered at a small college is given, but one value is missing. Fill in the missing value, then answer the questions that follow. X P(X) 24 0. 18 25 0.22 26 0.25 27 28 0.2 Find the mean number of students in a Statistics class at the college: Find the standard deviation of the number of students in a Statistics class at the college: Question Help: Message instructor