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1
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0
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1
answer
Should intervals of the frequency distribution graph be mutually exclusive?
asked
Aug 13
in
Data Science & Statistics

33
views
intervals
frequency
distribution
graph
mutually
exclusive
1
like
0
dislike
1
answer
Which of the following statistical presentation methods can be used to describe qualitative/categorical data?
asked
Aug 13
in
Data Science & Statistics

10
views
box
plots
bar
charts
pie
ogive
2
like
0
dislike
1
answer
What is a statistical population?
asked
Aug 12
in
Data Science & Statistics

17
views
population
data
sample
statistic
variable
parameter
2
like
0
dislike
0
answers
Damages at a factory manufacturing chairs are categorized according to the material wasted. Draw a Pareto chart.
asked
Aug 12
in
Data Science & Statistics

11
views
draw
pareto
chart
factory
manufacturing
material
2
like
0
dislike
0
answers
For the data \[ \begin{array}{llllll} \mathrm{t}: & 0 & 0.5 & 1 & 1.5 & 2 \\ \mathrm{~F}(\mathrm{t}): & 0 & 0.25 & 1 & 2.25 & 4 \end{array} \] third rule is
asked
Aug 11
in
Mathematics

19
views
determinant
calculus
solution
matrices
matrix
simultaneous
exam
1
like
0
dislike
0
answers
For the data \(\mathrm{t}: \quad \begin{array}{lllll}\quad 0 & 0.5 & 1 & 1.5 & 2 \\ \mathrm{~F}(\mathrm{t}): & 0 & 0.25 & 1 & 2.25\end{array}\)
asked
Aug 11
in
Mathematics

17
views
determinant
calculus
matrices
simultaneous
exam
solution
matrix
1
like
0
dislike
0
answers
Convert the following numbers with the indicated bases to decimal:
asked
Aug 11
in
Mathematics

19
views
numbers
decimal
convert
hexadecimal
bases
indicated
answer
1
like
0
dislike
0
answers
Two friends Jack and John appear in an interview for two vacancies in the same post. The probability of Jack's selection is (1/7) and the probability of John's selection is \((1 / 5)\). What is the probability that only one of them is selected?
asked
Aug 11
in
Mathematics

20
views
probability
marbles
calculate
question
math
answer
help
1
like
0
dislike
0
answers
Two students are selected from a class to the quiz team. If one of the student selected is a girl, what is the probability that both the students selected are girls?
asked
Aug 11
in
Mathematics

15
views
probability
class
zimsec
venndiagram
sets
olevel
marbles
1
like
0
dislike
0
answers
A box contains three coins: two regular coins and one fake coin with both side marked head. If a coin is picked at random and tossed, what is the probability that the outcome is head?
asked
Aug 11
in
Mathematics

19
views
probability
heads
fair
calculate
outcomes
coin
tails
1
like
0
dislike
0
answers
A fair die is rolled twice to obtain two numbers. Let \(\mathrm{X} 1=\) result of the first roll and \(\mathrm{X} 2=\) result of the second roll. If \(X 1+X 2=7\), what is the probability that \(X 1=4\) or \(X 2=4 ?\)
asked
Aug 11
in
Mathematics

17
views
fair
die
rolled
twice
probability
outcomes
1
like
0
dislike
0
answers
Solve the quadratic equation \(2 x^{2}6 x3=0\)
asked
Aug 11
in
Mathematics

16
views
solve
quadratic
equation
completing
square
1
like
0
dislike
0
answers
Determine the general solution of, \[ \cos 2 x+3 \cos x1=0 \]
asked
Aug 11
in
Mathematics

15
views
equation
solution
general
trigonometry
differential
integration
constants
1
like
0
dislike
0
answers
Simplify: \[ \frac{\cos x \cdot \sin \left(180^{\circ}2 x\right)}{2 \cos \left(90^{\circ}+x\right)}+\tan \left(180^{\circ}+x\right) \cdot \cos x \]
asked
Aug 11
in
Mathematics

17
views
trigonometry
cosine
identity
sine
beta
derive
alpha
1
like
0
dislike
0
answers
Without using a calculator, find the value of: \[ 2 \cos 105^{\circ} \cdot \cos 15^{\circ} \]
asked
Aug 11
in
Mathematics

18
views
trigonometry
cosine
sine
identity
alpha
beta
derive
1
like
0
dislike
0
answers
Use an appropriate method of differentiation to determine the derivative of the following. (Simplify your answers as far as possible):
asked
Aug 11
in
Mathematics

13
views
function
derivative
first
order
formula
principle
method
1
like
0
dislike
0
answers
Use the method of first principles to determine the derivative of \(f(x)=\frac{6}{x}\)
asked
Aug 11
in
Mathematics

16
views
function
derivative
first
order
formula
principle
2
like
0
dislike
1
answer
If \(\frac{p}{q}=\left(\frac{2}{3}\right)^{2} \div\left(\frac{2}{3}\right)\), find the value of \(27 \times\left(\frac{p}{q}\right)^{2}\)
asked
Aug 11
in
Mathematics

17
views
equation
solution
expression
simplify
degree
divisible
polynomial
2
like
0
dislike
1
answer
At what time between 10 and 11 the two hands of the clock form right angle?
asked
Aug 11
in
Mathematics

18
views
equation
probability
algebra
percentage
mathematics
calculate
math
2
like
0
dislike
1
answer
If \(\frac{a}{b}=\frac{b}{b}\) and \(\frac{b}{b}=\frac{6}{7}\) then the ratio \(\boldsymbol{a}+\boldsymbol{b}\) equal to?
asked
Aug 11
in
Mathematics

16
views
calculate
prove
matrices
matrix
function
equation
probability
2
like
0
dislike
1
answer
Calculate \(\eta(T)\) for the linear transformation \(T: E^{3} \rightarrow E^{2}\) defined by \[ T((a, b, c))=(a+2 b+c,a+3 b+c) \] Find a basis for ker \(T\).
asked
Aug 11
in
Mathematics

16
views
function
calculate
calculus
limits
logs
real
vector
1
like
0
dislike
1
answer
Let \(V\) and \(W\) be vector spaces, and let \(T: V \rightarrow W\) be \(a\) linear transformation. Prove that the set \(\operatorname{ker} T\) is a subspace of \(V\).
asked
Aug 11
in
Mathematics

15
views
vector
space
independent
sets
span
subset
map
1
like
0
dislike
1
answer
Find ker \(T\), where \(T: E^{3} \rightarrow E^{2}\) is defined by \(T\left(\left(x_{1}, x_{2}, x_{3}\right)\right)=\) \(\left(x_{1}+x_{2}, x_{2}x_{3}\right)\)
asked
Aug 11
in
Mathematics

14
views
real
function
calculus
calculate
limits
logs
1
like
0
dislike
1
answer
In linear algebra, what zero, identity, contraction and dilation transformations?
asked
Aug 11
in
Mathematics

15
views
space
vector
map
independent
sets
subset
span
1
like
0
dislike
1
answer
Show that \(T: \mathcal{C}_{22} \rightarrow \mathcal{C}_{22}\) defined by \(T(A)=\bar{A}\) is not linear.
asked
Aug 11
in
Mathematics

16
views
function
calculus
limits
calculate
real
logarithms
logs
1
like
0
dislike
1
answer
Let \(T: E^{2} \rightarrow E^{1}\) be defined by \[ T\left(\left(x_{1}, x_{2}\right)\right)={x_{1}}^{2}+{x_{2}}^{2} \] Show that \(T\) is not linear even though \(T(\theta)=\theta\).
asked
Aug 11
in
Mathematics

16
views
real
function
calculus
limits
calculate
logarithms
logs
1
like
0
dislike
1
answer
Show that \(T: E^{2} \rightarrow E^{2}\), defined by \[ T\left(\left(x_{1}, x_{2}\right)\right)=\left(x_{1}+x_{2}, x_{1}x_{2}+1\right) \] is not linear
asked
Aug 11
in
Mathematics

18
views
function
real
calculus
limits
calculate
logarithms
logs
1
like
0
dislike
1
answer
Prove that forÂ \(V\) and \(W\) vector spaces. If \(T: V \rightarrow W\) is a linear transformation, then \(T\left(\theta_{V}\right)=\theta_{W}\). (The subscripts emphasize the vector space that the zero vector comes from.)
asked
Aug 11
in
Mathematics

19
views
vector
space
independent
sets
span
subset
map
0
like
0
dislike
1
answer
Let \(V=W=E^{1}\). For \(x \in V\), define \(F(x)=m x+b\), where \(m\) and \(b\) are real numbers and \(b \neq 0\). Show that \(F\) is not a linear transformation.
asked
Aug 11
in
Mathematics

15
views
vector
map
space
independent
sets
subset
span
0
like
0
dislike
1
answer
Let \(V=W=E^{1}\). Define \(T(x)=m x\), where \(m\) is a fixed real number. Show that \(T\) is a linear transformation.
asked
Aug 11
in
Mathematics

17
views
map
vector
space
sets
independent
span
subset
0
like
0
dislike
1
answer
Let \(V\) and \(W\) be real vector spaces (their dimensions can be different), and let \(T\) be a function with domain \(V\) and range in \(W\) (written \(T: V \rightarrow W)\). We say \(T\) is a linear transformation if
asked
Aug 11
in
Mathematics

13
views
map
vector
space
independent
sets
span
subset
1
like
0
dislike
1
answer
What is the main objective of linear algebra?
asked
Aug 11
in
Mathematics

14
views
main
objective
linear
algebra
0
like
0
dislike
1
answer
Consider a linear operator \(L: \mathbb{R}^{2} \rightarrow \mathbb{R}^{2}\),
asked
Aug 11
in
Mathematics

17
views
linear
space
map
vector
matrix
transformation
basis
0
like
0
dislike
1
answer
Consider a linear operator \(L\) on the vector space of \(2 \times 2\) matrices given by
asked
Aug 11
in
Mathematics

16
views
calculus
determinant
function
graph
integral
domain
limit
0
like
0
dislike
1
answer
What is the relationship between the basis of a vector space and coordinates?
asked
Aug 11
in
Mathematics

17
views
matrix
basis
vector
span
sets
rank
space
0
like
0
dislike
1
answer
What is a matrix transformation in mathematics?
asked
Aug 11
in
Mathematics

17
views
transformation
linear
map
differential
vector
space
basis
0
like
0
dislike
1
answer
What is a linear transformation in mathematics?
asked
Aug 11
in
Mathematics

17
views
transformation
linear
vector
space
map
basis
differential
0
like
0
dislike
1
answer
Let \(T: \mathbb{R}^{3} \rightarrow \mathbb{R}^{2}\) be the linear transformation defined by \[ T(x, y, z)=(x+y+z, x+3 y+5 z) \]
asked
Aug 11
in
Mathematics

11
views
linear
space
vector
transformation
basis
sets
independent
0
like
0
dislike
1
answer
Let \(V, W\), and \(Z\) be vector spaces, and let \(T: V \rightarrow W\) and \(U: W \rightarrow Z\) be linear transformations.
asked
Aug 11
in
Mathematics

13
views
vector
space
map
independent
sets
span
subset
0
like
0
dislike
1
answer
Let \(\beta\) and \(\gamma\) be the following standard ordered bases of \(M_{2 \times 2}(\mathbb{R})\) and \(P_{2}(\mathbb{R})\), respectively:
asked
Aug 11
in
Mathematics

9
views
linear
transformation
oerdered
bases
solution
method
0
like
0
dislike
1
answer
Let \(T: P_{2}(\mathbb{R}) \longrightarrow \mathbb{R}^{2}\) be given by \(T(f(x))=\left(f(0), f^{\prime}(1)\right)\).
asked
Aug 11
in
Mathematics

13
views
function
differential
solution
method
approximates
analytic
picard
0
like
0
dislike
1
answer
Consider the vector space \(V=P_{1}(\mathbb{R})\).
asked
Aug 11
in
Mathematics

13
views
equation
set
line
real
analysis
epsilon
theory
0
like
0
dislike
1
answer
Let \(V\) and \(W\) be finitedimensional vector spaces and \(T: V \rightarrow W\) be linear.
asked
Aug 11
in
Mathematics

15
views
vector
space
map
independent
sets
span
subset
0
like
0
dislike
1
answer
Let \(T: P_{2}(\mathbb{R}) \rightarrow P_{2}(\mathbb{R})\) be given by \(T(f(x))=f(x)x f^{\prime}(x)\).
asked
Aug 11
in
Mathematics

11
views
function
differential
method
approximates
solution
analytic
picard
2
like
0
dislike
0
answers
Find the radius of the circle
asked
Aug 8
in
Mathematics

15
views
circle
kcse
kenya
line
midpoint
calculate
angle
2
like
0
dislike
0
answers
The current P/E ratio of a company is 35 times its earnings, and its five year projected growth rate is \(25 \%\). What is the company's PEG?
asked
Aug 8
in
Economics and Finance

19
views
price
value
bond
interest
market
convertible
premium
2
like
0
dislike
1
answer
Consider the function: \(f(x)=4^{x}2\).
asked
Aug 8
in
Mathematics

15
views
function
differential
analytic
vector
symmetry
lie
fields
2
like
0
dislike
0
answers
Counting by fives, write the numbers starting from.
asked
Aug 8
in
Mathematics

10
views
counting
five
multiples
multiple
threes
two
learn
2
like
0
dislike
0
answers
The first passenger is walking from point A to point B and back, and the second passenger is walking from point B to point A and back. First time they meet 8km from point A and second time they meet 6 km from point B .
asked
Aug 8
in
Mathematics

51
views
probability
newton
motion
class
law
belts
seat
3
like
0
dislike
0
answers
What 4digit number keeps the same last 4 digits when it is squared?
asked
Aug 7
in
Mathematics

22
views
digits
math
questions
try
answers
equations
problemsolver
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