a} rulu r\\/\\ L) b) Calculate mean, variance, and standard deviation 4. (3 points) The probability that a certain medication will cause a bad reaction in young children is 0.18; find the probability that out of 16 children that receive the medication: a) Precisely three will have a bad reaction b) One or three will have a bad reaction c) At most 2 will have a bad reaction. 5. (4 points) Small transportation companies were monitored for one day and the numbe gallons of gas was recorded. The distribution was approximately normal with a mean of 5 gallons and a standard deviation of 135 gallons