A 52 year old white male presents with increased abdo…

       A 52 year old white male presents with increased abdominal distention over 3 weeks.  Patient has noticed a 14 lb weight gain over the last 4 months and increasing fatigue.   Patient has also noticed edema in his ankles over the same time frame.  He has history of mild hypertension. On physical exam, patient is awake alert in no acute distress. Blood pressure is 100/60.  Respiratory 12, heart rate 73, temperature is afebrile.  HEENT is significant for no scleral icterus.  Skin exam has no jaundice.  Chest was clear to auscultation.  Heart was regular rate and rhythm. Abdomen is protuberant with some shifting dullness. Patient has 3+ edema bilaterally to the mid calf. Lab values are significant for a normal CBC, normal basic chemistry, creatinine of 0.9.  Albumin is 2.7, AST 33, ALT 43, total bili 1.2, LDH 458, alkaline phosphatase 337. Patient subsequently has a paracentesis of 4 L of cloudy fluid.   Fluid lab values: Albumin 1.2, total protein 3.2.  LDH 345.  Cell count 400 with 85% histiocytes.  Cultures of the fluid were sent.   What is the most likely cause of patient’s ascites?

A little league baseball player has a batting average of 0.4…

A little league baseball player has a batting average of 0.470. In other words, the probability is 0.47 that the player will get a hit on his next at bat. Let X represent the number of hits out of the next 9 at bats, and suppose X follows a binomial distribution. Find the probability that he has at least 1 hit in his next 9 at bats. [a] Retype your answer. [b]   (Use 4 or more decimals at each step in your computations, but enter your answers to 3 decimal places.)

A florist has determined that 28% of all their sales are cas…

A florist has determined that 28% of all their sales are cash sales. A random sample of 56 sales is selected.   a.) Find the standard error for the proportion of cash sales. [a]   b.) What is the probability that more than 25% of those sampled were cash sales? [b][c]

The following figure shows a beaker divided into two compart…

The following figure shows a beaker divided into two compartments by a semipermeable membrane that allows the passage of water molecules, but prevents the passage of sugar molecules. Assume that each sugar molecule represents a percentage point of sugar dissolved in the solution. Over time, the solution volume on the left side of the figure would __________. This is because the solution on the left side of the figure is __________ relative to the solution on the right.