59 Answered Questions for the topic Data

2d

Updating averages

Hello,I'm analyzing some data and calculating averages. Basically what im doing is calculating the average ranges of gps coordinates from a central location. My issue is that I want to update said... more

02/23/22

discuss which join operation can help to retrieve the records from multiple tables. Justify your answer with at least two solid arguments.

Consider a scenario, there are three tables name ‘X’, ‘Y ‘and’ Z’ with schemes X (u, v, w), Y (l, u, m, n, o, p) and Z (r, s, t, u, q), These tables have a common attribute or field. We want to... more

statistics probbality data analysis

An airline is deciding how much to overbook a flight. The plane has 175 seats. Historically, 95 percent of those with a reservation will actually show up. The airline charges $500 for each seat on... more

Probability statistics data analysis excel

A hospital is trying to decide how many new rooms to add to a new wing they are building. Each new room will contain one bed. There are currently 100 rooms. Each new room will cost $80,000 for... more

Probability data analysis statistics

A hospital is trying to decide how many new rooms to add to a new wing they are building. Each new room will contain one bed. There are currently 100 rooms. Each new room will cost $80,000 for... more

12/09/21

Need help with Statisitcs.

The weights of adult tuna are normally distributed with a mean of 90 lbs and an standard deviation of 20 lbs. If you catch an adult tuna, what is the probability that it weighs less than 70... more
Data Statistics

12/01/21

Normal distribution

500 students are getting ready to take the bar exam. Assume that the scores can be approximated by a normal distribution. How many students do we expect to be within 2 standard deviations from the... more

Write a static method histogram() that takes an array a[ ] of int values...........

Write a static method histogram() that takes an array a[ ] of int values and an integer M as arguments and returns an array of length M whose ith entry is the number of times the integer i appeared... more

How can I find Gross Margin and COGS knowing Sales, Profit, Discount, Product Quantity, Shipping Cost?

I have an E-Commerce dataset. How can I find Gross Margin and COGS knowing Sales, Profit, Discount, Product Quantity, Shipping Cost?

05/19/21

Binomial Distribution Question?

Studies show that 15% of people do not signal when changing lanes. Bob stands at a stop sign and checks the first 20 cars to see if they signal or not. What if the probability that no more than 3... more

Which of these random variables has a hypergeometric distribution?

a) the number of 0s produced by a random-number generatorb) the number of defective products in a random sample of 20 taken from a production line that has a 3% defect ratec) the number of attempts... more

05/09/21

Tukey test help!

Hey,I don't understand what this Tukey test shows. Can someone help me?$`species:treatment` diff lwr upr ... more

04/17/21

The results are consiered accurate within +4 percent points, 9 times out of 10. State the confidence level. PLEASE HELP. THANK YOU IN ADVANCE :)

A poll was conducted about an upcoming election. The results are considered accurate within +4.0 percent points, 9 times out of 10. State the confidence level.

03/31/21

Plotting a 3D rectangle, with vertex starting at the origin, from a list of dimensions.

Hi,I have been struggling to find a resource that I truly understand and that is exactly what I'm looking for. I'm currently learning python, but working on it for my senior research project.So, I... more

data structure and algorithm make and application using mentioned programming tools

Part 1- Make an application in which you need to implement all discussed programming tools i.e. ordered arrays, Abstract data types, linked lists, recursion etc. must be implementedPart... more

02/05/21

The table below shows the wages of employees at the Yacht Club.

a) Copy the table and complete the class centre column.Hourly Class Wage Centre. Frequency14-18 ... more

02/04/21

a) For the following data set:

7 9 2 5 4 11 1 4 40 Find: i) the range. ii) the interquartile range b) Which of the two measures calculated in part (a) is the best representation of the spread of this data? Give a... more

02/03/21

The table below shows the ages of a class of 60 students enrolled in the HSC course at TAFE Digital.

Age Frequency18 1419 2520 1621 5Using the statistical mode on your calculator, find the population standarddeviation of these ages.

02/01/21

A sample of 12 students was asked how many hours they had studied the week before their final exam.

Their responses were as follows: 18 40 14 23 14 15 18 14 19 13 16 12A) Discuss the effect on the mean of removing the outlier from the given data.

02/01/21

A sample of 12 students was asked how many hours they had studied the week before their final exam.

Their responses were as follows: 18 40 14 23 14 15 18 14 19 13 16 12b) find effect on the mean of removing the outlier from the given data.

12/27/20

How do you calculate percentage mean?

I was reading some papers and these papers used a mean percentage to describe some data. I have some data of my own which I want to find a mean percentage of, but I cannot work out how to and I... more

12/27/20

How to do data and statistical analysis of data where the type of results and methodology are very different

Hello! I needed help with a systematic review that I am conducting. I have found some data but it is very different and I cannot combine it. I am measuring the complement resistance of certain... more

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