Author: Anonymous

A study compared men who exercised regularly with men who did not exercise regularly. Among men who exercised regularly, 4% had a heart attack. Among men who did not exercise regularly, 12% had a heart attack. In the scenario above, which statistic is represented by 12%?

In a certain screening program, 20% of patients who are flagged for follow-up actually have the condition being screened for. What are the odds that a flagged patient has the condition?

Customers at a gas station pay with a credit card, a debit card, or cash. On a certain day, 150 customers paid with a credit card, 90 paid with a debit card, and 60 paid with cash. One customer from that day is selected at random. What is the probability that the selected customer paid with a credit card?

A student is reviewing the characteristics of fibrous joints. Which statement accurately describes a fibrous joint?

According to Nye and Kim, “soft power” refers to:

If an event has probability 0.35, then the probability that the event does not happen is 0.65.

Mechanism: Provide a detailed, stepwise mechanism for the following dehydration reaction using concentrated sulfuric acid. Use curved arrows to show the movement of electrons.

a. Beginning with one molecule of glucose, include and state the overall equation for cellular respiration, explain each of the stages where the reactants enter into the pathway, and describe the stages that involve actually making the products. b. List and explain each of the stages during cellular respiration that involve the use and production of ATP, NAD+, NADH, FAD and FADH2. At each stage, for each of the molecules, explain how many are used and how many are produced  (1/2 mark for each point provided in the description)

Below is the  1H spectrum for a molecule with molecular formula C10H14O. Deduce the structure of this molecule and assign all 1H signals.      

Draw all products expected from the addition of 1 equivalent of HCl to the diene shown below. Show all reactive intermediates and resonance structures that lead to the final products. Identify both the kinetic and thermodynamic products from this reaction.