When rolled, two dice should come up to a sum of 8 at a rate of
13.89%. I roll two dice 100 times and get 11 sums of 8.
a) At the .01 level are the dice coming up at a statistically
different % of 8 than expected? (p = .403)
Provide an example of a proof by mathematical induction.
Indicate whether the proof uses weak induction or strong induction.
Clearly state the inductive hypothesis. Provide a justification at
each step of the proof and highlight which step makes use of the
inductive hypothesis.
The company has just come up with a new highly profitable
product. As a result it plans to retain all earnings for the next 3
years (i.e. b=1) and invest them at a return (R) of 100% per year.
After three years the company will go back to its old policy of
retaining 60 percent of its earnings and investing them at 20
percent.
What will be the new price of the stock?
The new PE ratio
The new premium...
Create a mathematical proof to prove the following:
Given an integer n, and a list of integers such that the
numbers in the list sum up to n. Prove that the product of a list
of numbers is maximized when all the numbers in that list are 3's,
except for one of the numbers being either a 2 or 4, depending on
the remainder of n when divided by 3.
Show in a formal mathematical proof, theoretical analysis, an
even split of an array into two subarrays which answers in the best
performance of quicksort algorithm "appraised with respect to the
running time". coding or empirical investigation are not
needed.
In the proof of bolzano-weierstrass theorem in R^n on page 56 of
"Mathematical Analysis" by Apostol, should the inequality be
a/2^(m-2) < r/sqrt(n) or something related to n? a/2^(m-2) <
r/2 seems not enough
Show in a formal mathematical proof, theoretical analysis,
substitution method, an even split of an array into two subarrays
which answers in the best performance of quicksort algorithm
"appraised with respect to the running time". coding or empirical
investigation are not needed.
1. Draw a pdf (or histogram) and its cdf of the sum of 5 iid
uniform random variables and compare with Gaussian pdf that can be
obtained from CLT.
2. Do the same thing with 50 iid uniform random variables.