06/11/21
What is the distribution of x.
suppose the random varible x has a binomial distribution with p>.5 then the distribution of x isa) skewed to the leftb) skewed to the rightc) normal distributiond) symmetric
line and plane intersection
In three-space, there are three possibilities for the intersection of a line and a plane.
(a) The line intersects the plane at a point.
(b) The line lies on the plane.
(c) The line is parallel to...
more
Current of a Stream relative to a dolphin
A dolphin travels at an average of 10 mi/h in still water. The dolphin travels 75 miles downstream with the east coast current and 75 miles upstream against the east coast current in a total of 18...
more
06/08/21
P(A) = 0.5, P(B) = 0.5, and P(AandB) = 0.05. P(not B ∣ A)= ?
I've attempted this by doing A-B and dividing that answer by A as told, and got it wrong. I did this with a venn diagram and went by a video supplied below the question, and still come up wrong. I...
more
Follows
•
2
Expert Answers
•2
![]()
06/04/21
Doing the integral of a* (x^2) * e^-bx
Hi, I’m having trouble at doing the integral of a*x^2 * e^-bx. In fact I don’t know how to change the e^-bx to have an answer which , with the definite integral from zero to + infinite, give me a...
more
06/03/21
Write the product as a sum or difference:
Write the product as a sum or difference:18cos(15a)sin(10a)=
06/02/21
Find the length of the shortest straw
Marlene has three straws two straws have the length shown. She does not know the length of the shortest straw but when she forms a triangle with all three the triangle is obtuse which are possible...
more
06/02/21
Given sec A =13/6 and that angle A is in Quadrant I, find the exact value of sin A in simplest radical form using a rational denominator.
Follows
•
1
Expert Answers
•4
![]()
06/02/21
What is the probability that 83% or more of this sample…?
This equation comes from Edgenuity's course of Statistics, and I am taking the course as a high school senior. I understand how to find the z-score and, in this case, not the standard deviation.A...
more
06/02/21
True or False? Proving Identities
(1 -sin t)/(cos t) + (cos t)/(1- sin t)= (2 sec t) is an identity.True or False?
Follows
•
2
Expert Answers
•2
![]()
06/01/21
Write an equation for the translation of y= 4/x that has the asymptotes x=7 and y=6.
Write an equation for the translation of y=4/x that has the asymptotes x=7 and y=6.
A woman drives an SUV that gets 13 mi/gal (mpg). Her husband drives a hybrid that gets 65 mpg.
A woman drives an SUV that gets 13 mi/gal (mpg). Her husband drives a hybrid that gets 65 mpg. Every week, they travel the same number of miles. They want to improve their combined mpg. They have...
more
06/01/21
What is the degree of the polynomial shown in the table?
A) ConstantB) LinearC) QuadraticD) CubicE) QuarticD) Quintic
Follows
•
2
Expert Answers
•3
![]()
![]()
05/31/21
f(x,y) = x^2 + kxy + y^2 where k is a constant.
For what values of k does the second derivative test guarantee a saddle point.For what values of k does the second derivative test guarantee a local minimum.
05/31/21
Find the range of the function f of x equals the integral from 0 to x of the square root of the quantity 36 minus t squared dt
Find the range of the function a. [-6, 6]b. [0, 6]c. [0, 9π]d. [0, 18π]
Probability of Combined Events
A bag contains 22 red marbles, 15 purple marbles and a number of green marbles. A marble is randomly selected from the bag. Probability choosing red marble is 11/25. Find the number of green...
more
Follows
•
1
Expert Answers
•3
![]()
![]()
05/31/21
Suppose X is a continuous random variable that is uniformly distributed between 3 and 8. Which one of the following functions can be used to find P(X<=5.8)?
import scipy.stats as st1-st.uniform.cdf(5.8,loc=3,scale=8)import scipy.stats as stst.uniform.cdf(5.8,loc=3,scale=5)
05/31/21
How many different ways can the members of the Defense Subcommittee be chosen from among the 29 senators on the Appropriations Committee?
The US Senate Appropriations Committee consists of 29 members—15 Republicans and 14 Democrats. The Defense Subcommittee consists of 19 members—10 Republicans and 9 Democrats. How many different...
more
05/30/21
Please help me this probability question
A grocery store is sponsoring a sale promotion where the cashier give away one of letters A, E ,L,S ,U ,V for each purchase. If a customer collects all six letters he gets 10 dolar worth for...
more
Quadratic equation
The quadratic equation 2x²=6x+3 has roots p and q. Find the quadratic equation with the roots p2q dan pq2.
05/29/21
AP Stats Questions Pls Help!
What is the value of χ2 for the two-way table?
A/ B/ C
X
46
21
15
Y
25
32
29
Z
37
23
28
A, B, and C are supposed to be separate columns, sorry the table didn't come out...
more
05/28/21
Calculus - Curve Sketching
A point on a graph where the second derivative is zero
is an inflection point
may be an inflection point
is a local minimum
is a local maximum
05/28/21
Calculus - Curve Sketching
Use the derivative to find the exact critical points and intervals of increase and decrease forf (x) = 4x3 – 21x2 – 24x + 5.
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.