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
dusya [7]
2 years ago
10

What are the values of P?

Mathematics
1 answer:
son4ous [18]2 years ago
4 0

Answer:

P = 0,6

Step-by-step explanation:

solve the rational <u>equation </u>by combining <u>expressions </u>and isolating the <u>variable </u>P.

<h2><u><em>Hope it helps!!!</em></u></h2><h2><u><em>Brainliest pls!!!</em></u></h2>
You might be interested in
3 + (10 − 2)2 ÷ 4 ⋅ 1/2 whole to the power of 4
pshichka [43]

Answer:

equals 4 i believe..

Step-by-step explanation:


4 0
3 years ago
Find the slope of the line for the points (-3, 6) and (1,-3)
Fudgin [204]
U do the formula
slope = -9/4
4 0
2 years ago
Read 2 more answers
Help ASAP !!!!!!!!!!!!!!!
Brrunno [24]
1 1/2 + 1 1/3 is 2 5/6
7 0
3 years ago
Read 2 more answers
Maya's history test had 40 questions. She answered 95% of the items correctly. How many questions did Maya answer correctly?
ankoles [38]

Maya got 38 of them right

5 0
2 years ago
Read 2 more answers
The mean number of words per minute (WPM) read by sixth graders is 8888 with a standard deviation of 1414 WPM. If 137137 sixth g
Bingel [31]

Noticing that there is a pattern of repetition in the question (the numbers are repeated twice), we are assuming that the mean number of words per minute is 88, the standard deviation is of 14 WPM, as well as the number of sixth graders is 137, and that there is a need to estimate the probability that the sample mean would be greater than 89.87.

Answer:

"The probability that the sample mean would be greater than 89.87 WPM" is about \\ P(z>1.56) = 0.0594.

Step-by-step explanation:

This is a problem of the <em>distribution of sample means</em>. Roughly speaking, we have the probability distribution of samples obtained from the same population. Each sample mean is an estimation of the population mean, and we know that this distribution behaves <em>normally</em> for samples sizes equal or greater than 30 \\ n \geq 30. Mathematically

\\ \overline{X} \sim N(\mu, \frac{\sigma}{\sqrt{n}}) [1]

In words, the latter distribution has a mean that equals the population mean, and a standard deviation that also equals the population standard deviation divided by the square root of the sample size.

Moreover, we know that the variable Z follows a <em>normal standard distribution</em>, i.e., a normal distribution that has a population mean \\ \mu = 0 and a population standard deviation \\ \sigma = 1.

\\ Z = \frac{\overline{X} - \mu}{\frac{\sigma}{\sqrt{n}}} [2]

From the question, we know that

  • The population mean is \\ \mu = 88 WPM
  • The population standard deviation is \\ \sigma = 14 WPM

We also know the size of the sample for this case: \\ n = 137 sixth graders.

We need to estimate the probability that a sample mean being greater than \\ \overline{X} = 89.87 WPM in the <em>distribution of sample means</em>. We can use the formula [2] to find this question.

The probability that the sample mean would be greater than 89.87 WPM

\\ Z = \frac{\overline{X} - \mu}{\frac{\sigma}{\sqrt{n}}}

\\ Z = \frac{89.87 - 88}{\frac{14}{\sqrt{137}}}

\\ Z = \frac{1.87}{\frac{14}{\sqrt{137}}}

\\ Z = 1.5634 \approx 1.56

This is a <em>standardized value </em> and it tells us that the sample with mean 89.87 is 1.56<em> standard deviations</em> <em>above</em> the mean of the sampling distribution.

We can consult the probability of P(z<1.56) in any <em>cumulative</em> <em>standard normal table</em> available in Statistics books or on the Internet. Of course, this probability is the same that \\ P(\overline{X} < 89.87). Then

\\ P(z

However, we are looking for P(z>1.56), which is the <em>complement probability</em> of the previous probability. Therefore

\\ P(z>1.56) = 1 - P(z

\\ P(z>1.56) = P(\overline{X}>89.87) = 0.0594

Thus, "The probability that the sample mean would be greater than 89.87 WPM" is about \\ P(z>1.56) = 0.0594.

5 0
3 years ago
Other questions:
  • Identify the function shown in this graph
    12·1 answer
  • What does 28,000 lb = in T
    10·1 answer
  • The length of a rectangle is 4 in greater than the width the perimeter of the rectangle is 24 in
    14·2 answers
  • 1.6 hours to 9.5 hour
    10·1 answer
  • Daniel has 1 blue pencil and 5 yellow pencils in his backpack. He also has 2 pink erasers, 4 tan erasers, and 3 gray erasers in
    5·1 answer
  • Thomas had 12 juice boxes he gave some to his sisters he now has more rhan 5 left.Which inequality can be used to find j the num
    14·1 answer
  • Please help. +10 Cant figure this one out.
    12·1 answer
  • Is there any potential negative effects immigration can have
    7·2 answers
  • Complete the inequality statement with the symbol that makes it true.<br> 28.005_28.05
    10·1 answer
  • What is the length of b
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!