Recent questions in Data distributions

High school statisticsAnswered question

Leon Bishop 2023-04-01

Construct all random samples consisting three observations from the given data. Arrange the observations in ascending order without replacement and repetition.

86 89 92 95 98.

86 89 92 95 98.

High school statisticsAnswered question

juanikitoexgv5y 2023-03-31

Find the mean of the following data: 12,10,15,10,16,12,10,15,15,13.

High school statisticsAnswered question

Marques Flynn 2022-11-27

For the data in the table, does y vary directly with x? Write an equation for the direct variation.

$x:8,16,24\phantom{\rule{0ex}{0ex}}y:11,22,33$

a. yes; y = 2.75x

b. yes; y = 0.6875x

c. yes; y = 1.375x

d. no; y does not vary directly with x

$x:8,16,24\phantom{\rule{0ex}{0ex}}y:11,22,33$

a. yes; y = 2.75x

b. yes; y = 0.6875x

c. yes; y = 1.375x

d. no; y does not vary directly with x

High school statisticsAnswered question

Kameron Wang 2022-11-18

Understanding Empirical Data Distribution

"We can approximate $p(x,y)=p(x)p(y|x)$ using the empirical data distribution

$p(x,y)=\frac{1}{N}\sum _{n=1}^{N}{\delta}_{{x}_{n}}(x){\delta}_{{y}_{n}}(y)"$

In another part of the paper they say $p(y|{y}_{n})={\delta}_{{y}_{n}}(y)$.

I have some background in probability but none in statistics; I was able to figure out what an Empirical CDF is, but not a pdf like here, so I'm not sure exactly what the authors are doing. Does the $\delta $ refer to the Dirac delta distribution?

"We can approximate $p(x,y)=p(x)p(y|x)$ using the empirical data distribution

$p(x,y)=\frac{1}{N}\sum _{n=1}^{N}{\delta}_{{x}_{n}}(x){\delta}_{{y}_{n}}(y)"$

In another part of the paper they say $p(y|{y}_{n})={\delta}_{{y}_{n}}(y)$.

I have some background in probability but none in statistics; I was able to figure out what an Empirical CDF is, but not a pdf like here, so I'm not sure exactly what the authors are doing. Does the $\delta $ refer to the Dirac delta distribution?

High school statisticsAnswered question

Abdul Ghani2022-08-20

If the mean of a normal distribution is 20 and its standard deviation is 5 then 95 percent of the data lie within which range

High school statisticsOpen question

Karli Kidd 2022-08-20

Use the following data set: 13, 8, 10, 7, 13, 9, 7, 11, 12, 10, 13 to answer questions

The data is said to be

Select one:

a. bimodal

b. multimodal

c. Unimodal

The data is said to be

Select one:

a. bimodal

b. multimodal

c. Unimodal

High school statisticsOpen question

veXslefsskink09 2022-08-17

Uniform distribution is defined over the interval from 2 to 5.

What are the values for a and b?

What are the values for a and b?

High school statisticsOpen question

Cristal Travis 2022-08-17

Use the following data set: 13,8,10,7,13,9,7,11,12,10,13 to answer questions

The data is said to be

Select one:

a. multimodal

b. bimodal

c. Unimodal

The data is said to be

Select one:

a. multimodal

b. bimodal

c. Unimodal

High school statisticsAnswered question

NANIID KA2022-08-04

Given the following test scores: 5, 20, 13, 15, 12, 19, 20, 10, 17, 11, 16. What is the mean, median, and mode?

High school statisticsAnswered question

Spencer Marvin P. Esguerra2022-06-20

C. Find the length of the confidence interval given the following data:(s – sample

standard deviation)

1. 𝑠 = 2.36, n = 350, confidence level: 99%

2. 𝑠 = 3.35, n = 250, confidence level: 99%

3. 𝑠 = 3, n = 275, confidence level: 95%

4. 𝑠 = 6, n = 425, confidence level: 98%

5. 𝑠 = 9, n = 501, confidence level: 99%

High school statisticsAnswered question

*construct all random sanples consisting three observations from the given data.arrange the observations in ascending order without replacement and repetition.*

*80 83 86 89 92*

High school statisticsAnswered question

According to a peer-reviewed journal article, the average time a SHS student spends studying asynchronously is 62 minutes per day. The standard deviation is 12 minutes. If a student is selected at random, find the probability that he or she spends at least 80 minutes studying asynchronously.

High school statisticsAnswered question

the following are scores of 20 students in an exam. compute the mean score

High school statisticsAnswered question

Teddy Dillard 2021-12-11

Give the following data, which is the equation of the regression line?

$$\begin{array}{|cccccc|}\hline X& 0& 3& 4& 5& 12\\ Y& 8& 2& 6& 9& 12\\ \hline\end{array}$$

a.$y=4.88+0.625x$

b.$y=4.98+0.425x$

c.$y=4.98+0.725$

d.$y=4.88+0.525$

a.

b.

c.

d.

High school statisticsAnswered question

nemired9 2021-12-11

Let T be the time needed to complete a job at a certain factory. By using the historical data, we know that

$$P(T\le t)=\{\begin{array}{ll}\frac{1}{16}{t}^{2}& for\text{}0\le t\le 4\\ 1& for\text{}t\ge 4\end{array}$$

a. Find the probability that the job is completed in less than one hour, i.e., find$P(T\le 1)$ .

b. Find the probability that the job needs more than 2 hours.

c. Find the probability that$1\le T\le 3$ .

a. Find the probability that the job is completed in less than one hour, i.e., find

b. Find the probability that the job needs more than 2 hours.

c. Find the probability that

As data distributions tasks can take various shapes and forms, always start with statistical reports as these may help you to find the answers that you require. See data distribution examples next to learn about the most suitable methodology for your particular case. There may be equations and a list of assumptions that are usually presented as word problems. If you have one in your school's textbook, compare it with the questions below and look for similarities. Since we are dealing with probability, do not forget to look into practice C Data distributions answers.