Compute the variance of x
An urn contains 8 red and 12 white balls. Draw one ball at random from the urn. Let X = 1 if a red ball is drawn and X = -1 if a white ball is drawn. Compute the variance of X.
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Determine the acceleration and position of the bullet as a function of time when the bullet is in the barrel.
What is the boiling point of a solution containing 16.0g ofcaffeine (C8H10N4O2)dissolved in 58.0g benzene (C6H6)? Theboiling point of pure benzene is 80.1 degrees Celsius andKbp is 25.3 oC/m.
Approximately 23% of the calls to an airline reservation phone line result in a reservation being made.
Design a basic Rankine cycle that uses water, refrigerant-134a,or ammonia as the working fluid and that produces the maximum amount of work from this energy source while rejecting heat to the ambient air at 40 C.
You want to make an acetic acid/acetate buffer, pH 5.6, with a volume of 250 mL, and a final concentration of ([AcOH] +[AcO-]) = 0.1 M. You may only use acetic acid and sodium acetate (no strong acid or base).
What must be the distance in meters between point charge q1 = 27.8 µC and point charge q2 = -68.7 µC for the electrostatic force between them to have a magnitude of 8.38 N?
A pressure cooker (closed tank) contains water at 200 F with the liquid volume being 1/10 of the vapor volume. It is heated until the pressure reaches 300 lbf/in.2. Find the final temperature. Has the final state more or less vapor than the initia
An unkiwn compound contians only carbon, hydrogen, and oxygen(CHO). Combustion of 3.50g of this compund produced 5.13g of carbon dioxide and 2.10g of water.
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Suppose that a group of researchers would like to explore how we perceive objects in the real world, rather than just in a laboratory
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Think about where you were the most and least engaged when reading a classmate's draft. Think about what captured your attention
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
What is another way to say ". It is important to ensure that the youth understand what the study involves, what their participation entails
Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think