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Dmitry_Shevchenko [17]
3 years ago
8

What must be true to define the measure of a distance of an arc between the points A and B on a circle? A unit of measure must b

e defined for distance. The distance along the arc has no relation to the angle measure between the two points. The radius of the circle must be measured. The circle must be drawn on a coordinate plane.
Mathematics
2 answers:
frez [133]3 years ago
8 0

anyone completed edgenutiy math 1 if so can i borrow ur account in order to complete it

Leno4ka [110]3 years ago
6 0
A.) A unit of measure must be defined for distance    
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We have n = 100 many random variables Xi ’s, where the Xi ’s are independent and identically distributed Bernoulli random variab
777dan777 [17]

Answer:

(a) The distribution of X=\sum\limits^{n}_{i=1}{X_{i}} is a Binomial distribution.

(b) The sampling distribution of the sample mean will be approximately normal.

(c) The value of P(\bar X>0.50) is 0.50.

Step-by-step explanation:

It is provided that random variables X_{i} are independent and identically distributed Bernoulli random variables with <em>p</em> = 0.50.

The random sample selected is of size, <em>n</em> = 100.

(a)

Theorem:

Let X_{1},\ X_{2},\ X_{3},...\ X_{n} be independent Bernoulli random variables, each with parameter <em>p</em>, then the sum of of thee random variables, X=X_{1}+X_{2}+X_{3}...+X_{n} is a Binomial random variable with parameter <em>n</em> and <em>p</em>.

Thus, the distribution of X=\sum\limits^{n}_{i=1}{X_{i}} is a Binomial distribution.

(b)

According to the Central Limit Theorem if we have an unknown population with mean <em>μ</em> and standard deviation <em>σ</em> and appropriately huge random samples (<em>n</em> > 30) are selected from the population with replacement, then the distribution of the sample mean will be approximately normally distributed.  

The sample size is large, i.e. <em>n</em> = 100 > 30.

So, the sampling distribution of the sample mean will be approximately normal.

The mean of the distribution of sample mean is given by,

\mu_{\bar x}=\mu=p=0.50

And the standard deviation of the distribution of sample mean is given by,

\sigma_{\bar x}=\sqrt{\frac{\sigma^{2}}{n}}=\sqrt{\frac{p(1-p)}{n}}=0.05

(c)

Compute the value of P(\bar X>0.50) as follows:

P(\bar X>0.50)=P(\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}}>\frac{0.50-0.50}{0.05})\\

                    =P(Z>0)\\=1-P(Z

*Use a <em>z</em>-table.

Thus, the value of P(\bar X>0.50) is 0.50.

8 0
3 years ago
2x+7=27 and 3x+1=28 does 2x+7= 3x+1
Savatey [412]
Hey there!

2x + 7 = 27
2x = 20
x = 10

3x + 1 = 28
3x = 27
x = 9

The values for both of these equations are 9 and 10; therefore, the answers are not equivalent.

I hope this helps!
5 0
3 years ago
Read 2 more answers
Michael walks his black lab 6 2/3 miles every week. If he walks his dog every Monday, Wednesday, Friday, and Sunday. How many mi
Elenna [48]

Answer: 1.7 miles

Step-by-step explanation:

dog is walked four times a week

6 2/3 miles in all

6 2/3 divided by 4 = 1.66666667

1.66666667 rounded to nearest tenth = 1.7

6 0
3 years ago
Help meeeeeeee TUT TUT TUT TUT
Arisa [49]

Answer:

that one is A but im not sure about the other ones

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Four ingredients costing $320 per kg $240 per kg $160 per kg and $85 kg are mixed so that air masses are in the ratio 4:1:3:2. c
Hoochie [10]

Answer:

2160

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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