Graduate Problem A computer system uses passwords that contain exactly eight characters, and each character is one of the 26 lowercase letters (a-z) or 26 uppercase letters (A-z) or 10 integers (0-9). Assume all passwords are equally likely. Let A and B denote the events that consist of passwords with only letters or only integers, respectively. Determine the following probabilities: (a) P(AUB) (b) P(A' UB) (c) P (Password contains exactly 1 or 2 integers) Therefore, P(exactly one integer or exactly two integers)=0.377 +0.254 - 0.630 2.5.8.​

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

How can you tell when x and y are not directly proportional?