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
hichkok12 [17]
3 years ago
11

WHOEVER ANSWERS THIS FIRST WITHIN 10 MINUTES GETS VOTED BRAINLIEST

Mathematics
1 answer:
user100 [1]3 years ago
6 0

Answer:

least

x

second least

-1/x

second greatest

x-1

greatest

1-x

Step-by-step explanation:

just put -14 where x is and put it in the calculator.

You might be interested in
I WILL GIVE BRAINLIEST!!!!<br><br> whose bored!!!!<br><br> 2+2=4
Valentin [98]

Answer:

nice

Step-by-step explanation:

6 0
3 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
What's y=-4+15 in standard form
kotykmax [81]

Answer:

y=1.1×10¹

Step-by-step explanation:

y=-4+15

y=11

y=1.1×10¹

5 0
3 years ago
Whats 9 + 10
romanna [79]

Answer:

19 BUT BACK IN 2015 OR 2011 IR 2013 ITS TO BE 21 AS A JOKE  IT USED TO BE VERY FUNNY LIKE WANT 9 PLUS 10 21 HAHAHAHAHAHAHAHAHA

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which is the graph of the function f(x) = -x
daser333 [38]
I’m not the best at graphs but i did take algebra, i think it’s graph number 2. also i’m sorry if it’s wrong:(
5 0
3 years ago
Other questions:
  • Write a real world situation of |x-14|=3
    6·1 answer
  • A person invested $7,200 in an account growing rate allowing money to double every 8 years. How much money would be in the accou
    5·1 answer
  • Which of the following is an example of a quantitative variable?
    7·1 answer
  • Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
    7·1 answer
  • Write the coordinates of the point C after dilation with scale factor of 5, centered at the orgin
    11·1 answer
  • Please help — Which ratio represents cos(c)?
    5·1 answer
  • GIVeawAy <br> if u answer my last question ill do more giveaways
    7·2 answers
  • In smallest to largest please help me
    8·1 answer
  • 9 x 5<br> -<br> 9 im give brainlists
    14·2 answers
  • I’m confused on this
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!