Give the statistical meaning of the relationship between the spending hours on using mobile and reading books per day.

Q: In a survey of the number of televisions (TV's) owned by households, the data would be…

A: Answer: Quantitative Data

Q: In a survey of the number of televisions (TV's) owned by households, the data would be…

A: We have to find  correct answer..

Q: Compute the correlation coefficient, of the hours and final grade.

A: Let X denotes the Hours of study and Y denotes Final grade for given subjects. To find : Correlation…

Q: What is the correlation between ‘Weight’ and ‘Performance’?

A:

Q: . Are the data consistent?

A: Given:  Total no of person =500  Nonof person preferred variety A = 400  Nonof person preferred…

Q: What is meant by an influential observation?

A: The definition of an influential observation is give bas follows:

Q: Illustrate a data set with 10 numbers that has a negative correlation?

A: Negative correlation: It is a inverse relationship between two variables.   In simple words consider…

Q: Explain Sources of Existing Statistics?

A: Existing statistics are previously collected data that has been analyzed in at least one way. There…

Q: what is the correlation for the recorded data of subscriptions?

A: Solution

Q: how do you calculate the mean and standard deviation without a calculator ?

A: In this question we have to tell that how to find the Mean and Standard deviation without using the…

Q: What is Variability between Groups?

A: Introduction: Consider k groups are to be compared with respect to their means, when it is known…

Q: What is an example of the use of statistics to make predictions and decisions in our daily lives?

A: Probability & Statistics can be used in our daily life in many activities like online shopping.

Q: find mean devaition of this data??

A: Calculate Mean deviation from the following grouped data Class Frequency (f) 110 - 119 1 120…

Q: the measure of variability that is influenced most by extreme values is

A: The range is the measure of dispersion or variability. The range can be calculated as: Range…

Q: what was the primary use of statistics in ancient times

A: In ancient times, Statistics was primarily used by the rulers or kings in order to collect…

Q: Which measure of central tendency better describes hours worked? median mode mean

A: Here we have to describe best measure of central tendency that describe the hours of worked

Q: Explain the graphic method of determining correlation between two variables?

A: Correlation: Correlation a measure which indicates the “go-togetherness” of two data sets. It can be…

Q: Give the importance of Statistics.

A: Statistics are the sets of mathematical equations that we used to analyze the things. It keeps us…

Q: A researcher finds a significant correlation between the amount of time spent watching television…

A: No, Given statement is FALSE

Q: what is the importance of statistics

A: Importance of statistics  1) Statistics is important in decision making based on the data. 2)…

Q: In any data set, what percent of data lies within 8 standard deviations of the mean

A: Given:  In any data set, what percent of data lies within 8 standard deviations of the mean??

Q: Which Variable is most important in predicting Accounts?

A:

Q: Analyze the experimental data

A: ANOVA: This is a statistical technique to observe the variation in the data.  here three brands of…

Q: The weights that are used in calculating a weighted mean will vary depending on the situation.

A:

Q: What is Statistical Measure of the Amount of Variation in a Population?

A: Standard deviation: The standard deviation indicates by how much each observation differs from a…

Q: 4. Describe the correlation between hours worked at a job and the money earned.

A: To write the correlation between hours worked at a job and the money earned

Q: When do official statistics occur?

A: Official statistics: These are the statistics produced by official governmental agencies for…

Q: Make up a data set with 10 numbers that has a positive correlation?

A:

Q: Are graphs effective substitutes for the statistical treatment of data?

A: Contributions to statistical graphics, including effective use of graphs and charts to communicate…

Q: Do you agree that standard deviation can measure variable relationships?

A: Yes, Standard deviation can measure variable relationships.

Q: What are the examples of Descriptive Statistics?

A: Descriptive statistics summarize the characteristics of a data set.  There are four major types of…

Q: re interested in examining the variability in current marital status by race. Which measure of…

A: Nominal variables are used with categorical data because they do not have quantitative values. In…

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

A: Does data have to always be numerical in statistics

Q: What is the Importance of Variability?

A:

Q: How to determine if a histogram has much variation or little variation?

A: A histogram is a graphical plot of numerical data using bars of different heights. It shows the…

Q: What is Variability within Groups?

A: The term variability within groups is used in ANOVA technique, it is also known as error variance…

Q: If you wish to run a hypothesis test to see if the mean cholesterol level is more than 200 mg/dL,…

A: Test is that whether mean cholesterol level is more than 200 mg/dL.

Q: A study reported a correlation between height and weight r = .5, p < 0.05. What is the proportion of…

A: Here correlation between height and weight is r = 0.5 and p&lt;0.05

Q: What is the TWO SOURCES OF VARIABILITY?

A: The total variation is portioned as follows: SST=SSTR+SSE

Q: Please discuss the concepts of Mean, Median, Mode, and Standard Deviation, including when each…

A: Given data  To dis cuss the concepts of mean, median , mode and standard deviation

Q: In correlation analysis, the relationship between age of persons and his or her blood pressure is…

A: Concept of correlation is to be used.

Q: How is the goal served by computing a measure of variability?

A: We need to find the goal served by computing a measure of variability

Q: when combined with high-quality research designs, statistics provide us with a greater sense of…

A: Introduction: It is required to identify the correct word that suits the given sentence best.

Q: Why is it important to understand statistics when assessing and designing research?

A: STATISTICS: It is the study of the collection of data and analysis it and interpret the data then…

Q: test

A: Given: Sample size, n = 10 Mean, μ=14 Sample mean, x = 14.75 Standard deviation, s = 1.75 Suppose…

Q: Give the importance of statistics in education course and in everyday life

A: Statistics - it is the regulation that covers the collection, organization, analysis,…

Q: What kinds of statistical data play a role in an auto insurance firm’s decision on the annual…

A: Various statistical tools are used by auto insurance companies to find out the amount of premium…

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.