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2. There were 10 road accidents in Perez Street during 6pm to 3 am for the month of December. Find the probability that the number of accidents on January is between 2 to 6? 3. The probability that a patient recovers from a rare blood disease is 0.40. If 16 people are known to have contracted this disease, what is the probability that at least 13 survive? 4. The Pizza Palace offers 3 sizes of cola - small, medium and large - to go with its pizza. The colas are sold for 22, 27 and 32 pesos, respectively. Thirty five percent of the orders are for small, 47% are for medium and 18% are for the large size. Let X be the amount charges for a cola. What is the expected value and standard deviation amount charges for a cola