Frequency 25 20 15 10 5 0 Ages of Students in Statistics Classes under 18 18-19 20-21 22-23 23-24 25-26 27-28 Ages 29-30 over 30

Q: Describe the main measures of central tendency and dispersion. Why are they important in analyzing…

A: A measure of central tendency helps to identify the location of a dataset, whereas a measure of…

Q: Develop the ability to picture the distribution of data in the format of a histogram or relative…

A: This question focuses on developing the ability to visualize the distribution of data in the form of…

Q: Briefly describe the methods of collecting primary data

A: The objective of this question is to understand the various methods of collecting primary data in…

Q: XYZ Corporation recorded the number of employee absences each week over a period of 10 weeks. The…

A: Given XYZ Corporation recorded the number of employee absences each week over a period of 10 weeks.…

Q: Identify the type of table that is used to group bivariate data.

A: In this case, we need to identify the type of table that is used to group bivariate data.-

Q: What does Qualitative data consist of?

A: Qualitative data: Qualitative data is defined as the data that categorize or classify the…

Q: The "fishing" approach to data analysis refers to what?

A: " fishing" is a data mining  practice in which large volumes of data are analyzed seeking any…

Q: How can I create a histogram when the only data I have is the percentage of 16 year olds who used…

A: To construct the histogram, the first thing is to determine the number of class intervals. There is…

Q: Highlight the precautions for use of secondary data

A: The objective of this question is to understand the precautions that need to be taken while using…

Q: write down the method of data collection from primary and secondary sources

A: Solution : Method of data collection from primary and secondary sources : 1) Primary Data :…

Q: what is nominal (categorial) data?

A: Categorical data: The type of data that naturally take non-numerical values, such as words that can…

Q: write down importance and uses of statistics in detail

A: Statistics: Statistics is the science which deals with the collecting, classifying, presenting,…

Q: What is the significance of the upper and lower line in the nomogram

A: The nomogram is also known as Rumack-Matthew nomogram.

Q: What type of Data is being shown

A: Given the histogram which is a visual representation of the data given. We have to write which type…

Q: Describe about the negatively skewed shape of histogram.

A: The histogram is said to be left-skewed or negatively skewed when the histogram has a long-left…

Q: What is the role of displays in statistics?

A: There are mainly two types of displays in statistics, such as, graphical representation and table or…

Q: How is statistics used in information systems?

A: statistics is used for data mining ,speech recognition ,vision and image analysis ,data compression…

Q: For a sample of retired nfl players, data are collected on the number of concussions each…

A: A study in which researches observe what is happening and what was happened in past,then tried to…

Q: How are the moving averages calculated?

A: A moving average is a technique to get an overall idea of the trends in a data set; it is an average…

Q: Dr. Matos sampled her statistics classes and recorded whether each student worked full-time,…

A: Given: out of 20 students Did not work = 3 Worked Full-time = 10 Part time = 7

Q: The number of books read buy student students in a week is an example of qualitative and discrete…

A: Qualitative variable consists of categories.

Q: How do you determine which data gathering instrument to use in a research?

A: Data collection is an important step in the research process. The instrument you choose to collect…

Q: Explain the difference between “bias”, “error”, and “precision”. Be sure your definition explains…

A: Given information: Bias, error, and Precision

Q: Identify two main types of graphical displays that are used for qualitative data.

A: Qualitative variable: A variable that is used for classification of individuals based on some…

Q: What do you mean by Panel Data?

A: Panel data: Panel data is a combination of quantities obtained over multiple individuals, which are…

Q: how to take correlation analysis from below data set via spss.

A: The data set provides information on temperature change with respect to baseline climatology across…

Q: Explain the meaning of an element, a variable, an observation, and a data set.

A: In the context of statistics, an element is an object on which a measurement is taken. Elements are…

Q: Why is it important to understand the level of measurement of a variable in statistics?

A: We have to write the importance to understand the level of measurement of a variable in statistics:…

Q: Explain the value of the business statistics in management

A: Statistical research in business enables managers to analyze past performance, predict future…

Q: What equation should be used in significance of the value found in scatter diagram of the data

A: A scatter plot is a graphic tool used to display the relationship between two quantitative…

Q: State the type of correlation between the number of hours students spend studying and the number of…

A: Correlation is the measure of linear association between two quantitative variables. If one…

Q: how do I describe the "measures of center and variability" of a chart?

A: The commonly used measures of center tendency are, Mean Median Mode In charts like histogram, the…

Q: explain the concept of positive correlation

A: Correlation refers to the relationship between between two variables. It can be positive or…

Q: How to determine to cut ap value in statistics?

A: P-value: The p-value is a measure of degree of the evidence against the null hypothesis. The…

Q: Make a histogram graph and make table of required data

A: Fromm the given question, Lets data be as follows below:

Q: Describe of two examples of data sets for each of the four levels of measurement. Justify your…

A:

Q: Explain how Pearson's Coefficient is utilized to determine the shape of data.

A: Value of Pearson's coefficient of skewness describes the shape of the distributon. As a general rule…

Q: why do you think the data presented this way?

A: The 2 different factors considered are: Human Factors Land Use Ozone Aerosols Greenhouse…

Q: Describe the descriptive statistics between the two variables.

A: For  College GPA:-Mean=2.7307standard deviation =0.4296Minimum = 2.0800First quartile (Q1) =…

Q: What does it mean when a constant is added to every data value in a data set ?

A: when a constant is added to every data value in a data set, there will be a change in the…

Q: Does data have to always be numerical in statistics?

A: Does data have to always be numerical in statistics

Q: How can graphics and/or statistics be used to misrepresent data?

A: Graphical representation or statistical data can be misleading or misrepresented. Some statistics…