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3 years ago

What kind of statement is accepted as true without proof

Mathematics

1 answer:

liberstina [14]3 years ago

5 0

Answer:

A postulate

Step-by-step explanation:

a statement that gives a description of a fundamental relationship between the basic terms of geometry.These statements in mathematics are accepted to be true without any proof.

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8/20 in simplest form

rjkz [21]

8/20 in simplest form is 2/5 because 8/20 divided by 4/4 equals 2/5

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3 years ago

For i≥1 , let Xi∼G1/2 be distributed Geometrically with parameter 1/2 . Define Yn=1n−−√∑i=1n(Xi−2) Approximate P(−1≤Yn≤2) with l

murzikaleks [220]

Answer:

The answer is "0.68".

Step-by-step explanation:

Given value:

$X_i \sim \frac{G_1}{2}$

$E(X_i)=2 \\$

$Var (X_i)= \frac{1- \frac{1}{2}}{(\frac{1}{2})^2}\\$

$= \frac{ \frac{2-1}{2}}{\frac{1}{4}}\\\\= \frac{ \frac{1}{2}}{\frac{1}{4}}\\\\= \frac{1}{2} \times \frac{4}{1}\\\\= \frac{4}{2}\\\\=2$

Now we calculate the $\bar X \sim N(2, \sqrt{\frac{2}{n}})\\$

$\to \frac{\bar X - 2}{\sqrt{\frac{2}{n}}} \sim N(0, 1)\\$

$\to \sum^n_{i=1} \frac{X_i - 2}{n} \times\sqrt{\frac{n}{2}}} \sim N(0, 1)\\\\\to \sum^n_{i=1} \frac{X_i - 2}{\sqrt{2n}} \sim N(0, 1)\\$

$\to Z_n = \frac{1}{\sqrt{n}} \sum^n_{i=1} (X_i -2) \sim N(0, 2)\\$

$\to P(-1 \leq X_n \leq 2) = P(Z_n \leq Z) -P(Z_n \leq -1) \\\\$

$= 0.92 -0.24\\\\= 0.68$

6 0

3 years ago

1/2

Zanzabum

Answer:

i think it's B, I'm not 100% sure

3 0

3 years ago

Giving brainliest answer

andrew-mc [135]

Answer:

Step-by-step explanation:

-5 represents the rate at which the temperature drops while 54 represents the initial temperature.

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3 years ago

Tom went to the supermarket and could not spend more than $30.00. He spent $9 on dairy

valina [46]

Answer:

it will be c

Step-by-step explanation:

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3 years ago

What kind of statement is accepted as true without proof​

What kind of statement is accepted as true without proof