STEP 3: Your turn. Complete a-b, then post your answers in the chat and any areas that were confusing or you had to overcome The director of admissions at San Antonio College estimated the distribution of student admissions for the fall semester or the basis of past experience Let's figure out the expected number of admissions for the fall semester? Admissions Probability 1,400 0.5 1,800 0.3 1,900 0.2 a. What is the expected number of admissions for the fall semester? b. Compute the variance and the standard deviation of the number of admissions. (Round your standard deviation to 1 decimal place.)