In the following exercises, use the expansion ( 1 + x ) 1 / 3 = 1 + 1 3 x − 1 9 x 2 + 5 81 x 3 − 10 243 x 4 + ... to write the first five terms (not necessarily a quartic polynomial) of each expression. 195. ( 1 + 4 x ) 4 / 3 ; a = 0
In the following exercises, use the expansion ( 1 + x ) 1 / 3 = 1 + 1 3 x − 1 9 x 2 + 5 81 x 3 − 10 243 x 4 + ... to write the first five terms (not necessarily a quartic polynomial) of each expression. 195. ( 1 + 4 x ) 4 / 3 ; a = 0
In the following exercises, use the expansion
(
1
+
x
)
1
/
3
=
1
+
1
3
x
−
1
9
x
2
+
5
81
x
3
−
10
243
x
4
+
...
to write the first five terms (not necessarily a quartic polynomial) of each expression.
Q9. If A and B are two events, prove that P(ANB) ≥ 1 − P(Ā) – P(B). [Note: This
is a simplified version of the Bonferroni inequality.]
-
Can you explain what this analysis means in layman's terms?
- We calculated that a target sample size of 3626, which was based on anticipated baseline 90-day mortality of 22% and a noninferiority margin of no more than 4 percentage points, would give the trial 80% power, at a one-sided alpha level of 2.5%, accounting for a maximum of 5% loss to follow-up and for early stopping rules for three interim analyses.-
(x)=2x-x2
2
a=2, b = 1/2, C=0
b) Vertex v
F(x)=ax 2 + bx + c
x=
Za
V=2.0L
YEF(- =) = 4
b
(글)
JANUARY 17, 2025
WORKSHEET 1
Solve the following four problems on a separate sheet. Fully justify your answers to
MATH 122
ล
T
earn full credit.
1. Let f(x) = 2x-
1x2
2
(a) Rewrite this quadratic function in standard form: f(x) = ax² + bx + c
and indicate the values of the coefficients: a, b and c.
(b) Find the vertex V, focus F, focal width, directrix D, and the axis of
symmetry for the graph of y = f(x).
(c) Plot a graph of y = f(x) and indicate all quantities found in part (b)
on your graph.
(d) Specify the domain and range of the function f.
OUR
2. Let g(x) = f(x) u(x) where f is the quadratic function from problem 1
and u is the unit step function:
u(x) = { 0
1 if x ≥0
0 if x<0
y = u(x)
0
(a) Write a piecewise formula for the function g.
(b) Sketch a graph of y = g(x).
(c) Indicate the domain and range of the function g.
X
фирм
where u is the unit step function defined in problem 2.
3. Let…
Probability And Statistical Inference (10th Edition)
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