1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Levart [38]
3 years ago
13

Please answer the questions in my profile. There's plenty of points there

Mathematics
1 answer:
Shtirlitz [24]3 years ago
3 0

Answer:

ok

Step-by-step explanation:

You might be interested in
An honest die is rolled. If the roll comes out even (2, 4, or 6), you will win $1; if the roll comes out odd (1,3, or 5), you wi
jenyasd209 [6]

Answer:

(a) 50%

(b) 47.5%

(c) 2.5%

Step-by-step explanation:

According to the honest coin principle, if the random variable <em>X</em> denotes the number of heads in <em>n</em> tosses of an honest coin (<em>n</em> ≥ 30), then <em>X</em> has an approximately normal distribution with mean, \mu=\frac{n}{2} and standard deviation, \sigma=\frac{\sqrt{n}}{2}.

Here the number of tosses is, <em>n</em> = 2500.

Since <em>n</em> is too large, i.e. <em>n</em> = 2500 > 30, the random variable <em>X</em> follows a normal distribution.

The mean and standard deviation are:

\mu=\frac{n}{2}=\frac{2500}{2}=1250\\\\\sigma=\frac{\sqrt{n}}{2}=\frac{\sqrt{2500}}{2}=25

(a)

To not lose any money the even rolls has to be 1250 or more.

Since, <em>μ</em> = 1250 it implies that the 50th percentile is also 1250.

Thus, the probability that by the end of the evening you will not have lost any money is 50%.

(b)

If the number of "even rolls" is 1250, it implies that the percentile of 1250 is 50th.

Then for number of "even rolls" as 1300,

1300 = 1250 + 2 × 25

        = μ + 2σ

Then P (μ + 2σ) for a normally distributed data is 0.975.

⇒ 1300 is at the 97.5th percentile.

Then the area between 1250 and 1300 is:

Area = 97.5% - 50%

        = 47.5%

Thus, the probability that the number of "even rolls" will fall between 1250 and 1300 is 47.5%.

(c)

To win $100 or more the number of even rolls has to at least 1300.

From part (b) we now 1300 is the 97.5th percentile.

Then the probability that you will win $100 or more is:

P (Win $100 or more) = 100% - 97.5%

                                   = 2.5%.

Thus, the probability that you will win $100 or more is 2.5%.

7 0
3 years ago
Mr. Newman works as an architect. He created a solid
Andrews [41]

Answer: The answer is 34,000 cm

Step-by-step explanation: I just did that

6 0
3 years ago
Read 2 more answers
If you’re good with geometry can you help me?
Paladinen [302]

Answer:

a: AB is perpendicular to CD

b: AM is equal in length to BM

4 0
3 years ago
I NEEDDD HELPPPP ASAPPPP ITS URGENTTT!!!!
natulia [17]

Answer:

(x-6)^2+(y-14)^2=4

Step-by-step explanation:

7 0
2 years ago
Which of the following expressions simplifies to a negative number? Select all that apply.
Contact [7]

Answer:

(-1)(-1)(-1)

(-1)(-1)(-1)(-1)(-1)

These, since they are all negatives and there are an odd number of terms.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Paul has a standard deck of cards. what is the probability he will choose a 2?
    6·1 answer
  • 2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.
    13·1 answer
  • I don't understand this question. can someone help?
    7·1 answer
  • What is the total number of common tangents that can be drawn to the circles
    11·1 answer
  • Find all zeros. One zero had been give
    11·1 answer
  • Please help me with this problem<br> Question: 5d - 6 + 8 -3d = 12
    10·2 answers
  • Pythagorean Theron can someone help me solve this
    8·1 answer
  • What is the volume of a cylinder, in cubic feet, with a height of 3 feet and a base diameter of 18 feet? Round to the nearest te
    5·1 answer
  • The library has allotted $480 for spring landscaping and has decided
    13·1 answer
  • PLS HELP!! Ill mark brainliest!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!