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
n200080 [17]
2 years ago
15

What is a normal distribution with a mean of 0 and a standard deviation of 1 called?

Mathematics
1 answer:
Katen [24]2 years ago
3 0
It's called the <em>standard normal </em>(or <em>Gaussian</em>)<em> distribution</em>. 
You might be interested in
23mm,20mm,13mm sides and 62,72,46, angle what type of triangle is that
Readme [11.4K]
23 mm, 20mm, 13mm sides: No equal sides and No equal angles are characteristics of a Scalene Triangle.

62,72,46 angles : All angles are less than 90°, this means that the triangle is an acute triangle.

Based on the above information the triangle is an ACUTE SCALENE TRIANGLE.
4 0
2 years ago
Somebody help please
Troyanec [42]
3.) Are bike helmets always  necessary <span>for people to wear?
All you have to do is try to take off the you, so that when people answer the questions, they do not opinions in them.</span>
5 0
3 years ago
I need answers kind of struggling
SIZIF [17.4K]

Answer:

45

Step-by-step explanation:

1/200*90=9/20

multiply by 100 because you need to convert to cm and you get 45

5 0
2 years ago
The statistics of nequals22 and sequals14.3 result in this​ 95% confidence interval estimate of sigma​: 11.0less thansigmaless t
dimulka [17.4K]
Answer: no, the confidence interval for the standard deviation σ cannot be expressed as 15.7 \pm 4.7

There are three ways in which you can possibly express a confidence interval:

1) inequality
The two extremities of the interval will be each on one side of the "less then" symbol (the smallest on the left, the biggest on the right) and the symbol for the standard deviation (σ) will be in the middle:
11.0 < σ < 20.4
This is the first interval given in the question and it means <span>that the standard deviation can vary between 11.0 and 20.4

2) interval
</span>The two extremities will be inside a couple of round parenthesis, separated by a comma, always <span>the smallest on the left and the biggest on the right:
(11.0, 20.4)
This is the second interval given in the question.

3) point estimate </span><span>\pm margin of error</span>
This is the most common way to write a confidence interval because it shows straightforwardly some important information. 
However, this way can be used only for the confidence interval of the mean or of the popuation, not for he confidence interval of the variance or of the standard deviation.

This is due to the fact that in order to calculate the confidence interval of the standard variation (and similarly of the variance), you need to apply the formula:
\sqrt{ \frac{(n-1) s^{2} }{\chi^{2}_{\alpha / 2} } } \leq \sigma \leq \sqrt{ \frac{(n-1) s^{2} }{\chi^{2}_{1 - \alpha / 2} } }

which involves a χ² distribution, which is not a symmetric function. For this reason, the confidence interval we obtain is not symmetric around the point estimate and the third option cannot be used to express it.
4 0
2 years ago
Can someone help me find the length of b of the unknown side in this triangle? Thanks! :)
creativ13 [48]

Answer: 4

Step-by-step explanation:

Using pythagoras theorem =>

b=\sqrt{c^2-a^2

b=\sqrt{5^2-3^2}

b=\sqrt{25-9}

b=\sqrt{16}

b=4

7 0
2 years ago
Read 2 more answers
Other questions:
  • Factor each expression <br> 8+16
    12·1 answer
  • class consists of 55% boys and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% of
    9·2 answers
  • What is the exact amount of pie?
    6·2 answers
  • Alex buys six equally priced candy bars for $9:00 what is the unit rate? <br>​
    10·1 answer
  • Shape 1 is similar to shape 2
    7·1 answer
  • Solve for the variable a D =a+b-c/3
    6·1 answer
  • Sin2x + cos3x expand the expression
    11·1 answer
  • Can someone pleaseee help me!!
    7·1 answer
  • What is logo e' rewritten using the power property?
    15·1 answer
  • 0.66x10 to the 3rd power
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!