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Questions Asked

MathMind:
Group Title
X has a lognormal with parameters with a mean of e^3 and variance e^10  e^6 . Find P (X<=e^2 ).
 updated 2 years ago
 No Medals Yet
Mathematics

MathMind:
Group Title
Help Please  Lognormal distribution
The length of time (in seconds) that a user views a page on a web site before moving to another page …
 updated 2 years ago
 32 replies
 1 Medal
Mathematics

MathMind:
Group Title
If X is continuous uniform on the interval (0, 10), find P (X+ (10/X) > 7). @Statistics
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

MathMind:
Group Title
A machining operation produces bearings with diameters that are normally distributed with mean 3.0005 inches and standard deviation 0.0010.…
 updated 2 years ago
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Mathematics

MathMind:
Group Title
STATS:If X is continuous uniform on the interval (0, 10), find P (X+ > 7). @Statistics
 updated 2 years ago
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Mathematics

MathMind:
Group Title
Let Y be a continuous random variable with probability density function f(y) = k (2 + 3y), 1 <y <3 and 0 elsewhere. Find k and E(1/y)
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

MathMind:
Group Title
STATS:Let Y be a continuous random variable with probability density function f(y) = k (2 + 3y), 1 <y <3 and 0 elsewhere. Find k and E(1/y…
 updated 2 years ago
 1 reply
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Mathematics

MathMind:
Group Title
STATS: Didn't quite follow my professor in class, help please.
Let Y be a continuous random variable with probability density function f(y) …
 updated 2 years ago
 1 reply
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Mathematics

MathMind:
Group Title
STATS: Didn't follow the professor, help please?
Let Y be a continuous random variable with probability density function f(y) = k (2 + 3y), …
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

MathMind:
Group Title
Statistics: I didn't follow my professor in class. help please?
Let Y be a continuous random variable with probability density function f(y)…
 updated 2 years ago
 No Medals Yet
Mathematics

MathMind:
Group Title
For what values of a and b is the line −4x+y=b tangent to the curve y=ax^3 when x=3?
 updated 3 years ago
 6 replies
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Mathematics

MathMind:
Group Title
Calculate the tangent line (attached)
 updated 3 years ago
 12 replies
 1 Medal
Mathematics

MathMind:
Group Title
1. Differentiable functions are always continuous.
2. If f(x)=e2, then f(x)=2e.
3. If f(c)=0 and f(c)0, then f(x) has a local minimum at …
 updated 3 years ago
 21 replies
 1 Medal
Mathematics

MathMind:
Group Title
T or F:
1  A continuous function on a closed interval always attains a maximum and a minimum value
2  If y' < 0 for all x in (x,1), then…
 updated 3 years ago
 2 replies
 No Medals Yet
Mathematics

MathMind:
Group Title
How to find the two variables that make it differentiable everywhere?
(attached)
 updated 3 years ago
 10 replies
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Mathematics

MathMind:
Group Title
why is it 4 and not 4 ? (attached)
 updated 3 years ago
 7 replies
 No Medals Yet
Mathematics

MathMind:
Group Title
removable discontinuity question (attached)
 updated 3 years ago
 3 replies
 1 Medal
Mathematics

MathMind:
Group Title
Evaluate the following limit:
\[sqrt{(9+11x^{2})} / (6+3x)]\
 updated 3 years ago
 27 replies
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Mathematics

MathMind:
Group Title
Evaluate the following limit:
(4+10x) / (106x)
 updated 3 years ago
 10 replies
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Mathematics

MathMind:
Group Title
Evaluate the following limits:
12x/(78x) as x>(7/8)^+…
 updated 3 years ago
 1 reply
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Mathematics

MathMind:
Group Title
how do i solve for lim ^+ and ^ ?
*attached*
 updated 3 years ago
 3 replies
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Mathematics

MathMind:
Group Title
9x−31 <= f(x) <= x^2+3x−22
determine lim as x goes to 3
…
 updated 3 years ago
 7 replies
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Mathematics

MathMind:
Group Title
9x−31 <= f(x) <= x^2+3x−22
determine lim as x goes to 3
 updated 3 years ago
 1 reply
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Mathematics

MathMind:
Group Title
What theorem should i use?
 updated 3 years ago
 2 replies
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Mathematics

MathMind:
Group Title
limits *attached*
 updated 3 years ago
 2 replies
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Mathematics

MathMind:
Group Title
Find an integer which is the limit of (1cosx)/x
as x goes to 0
 updated 3 years ago
 11 replies
 1 Medal
Mathematics

MathMind:
Group Title
Use the digits 1, 2, 3, 4, 5 and 6 once only,
in this multiplication sum to make it correct.
…
 updated 3 years ago
 8 replies
 2 Medals
Mathematics

MathMind:
Group Title
S=So+Vo(t)
S=So+Vo(t)+[a(t)^2]/2
V=Vo+a(t)…
 updated 3 years ago
 2 replies
 1 Medal
Mathematics

MathMind:
Group Title
Given f(x) = x after performing the following transformations: shift to the left 82 units, shrink vertically by a factor of 1/51, and shi…
 updated 3 years ago
 11 replies
 No Medals Yet
Mathematics

MathMind:
Group Title
Describe a function g(x) in terms of f(x) if the graph of g is obtained by reflecting the graph of f about the xaxis and if it is horizon…
 updated 3 years ago
 2 replies
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Mathematics
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