Odds ratio can be used to approximate the relative risk when the disease under study is rare.  True  False

Q: What is the difference between prevalence and incidence? Over time, how are the measures of…

A: The Main difference between Prevalence and Incidence is defined as follows  Prevalence measures or…

Q: Inferential Statistics is the:

A: Descriptive statistics: Descriptive statistics summarizes the information in a sample. It can be…

Q: Briefly discuss how ANCOVA is different from ANOVA.

A: ANOVA is an effective technique for carrying out researches in various disciplines like business,…

Q: Comparing Means from Different Populations?

A: Given that, Comparing Means from Different Populations: There are two means from two different…

Q: True or False? Biostatistics is defined as the application of statistical principles in medicine,…

A: Statement : Biostatistics is defined as the application of statistical principles in medicine,…

Q: How are total risk, non-diversifiable risk, and diversifiable risk related? Why is non diversifiable…

A: The total risk of a security is the combination of non diversifiable risk and diversifiable risk.…

Q: Standard error is the same concept as standard deviation except that it has to do with deviation of…

A: Standard deviation: The standard deviation is the measured of dispersion or spread. Standard…

Q: What does the F-ratio tell us in between-subjects ANOVA results

A: ANOVA: It stands for Analysis of Variance. It is a statistical technique used to compare more than…

Q: The mean score on this test is: The median score on this test is:

A: Calculate Mean and Median from the following grouped data:- X Frequency 3 1 4 3 5 2 6 1…

Q: Explain the the Chi-Squared Distribution?

A:

Q: When data is normally distributed the mean equals the median True False

A: Normal distribution

Q: FOR ESTIMATION OF PARAMETERS IN STATISTICS: What are the Types of Estimates? How to estimate a Mean?

A: In Estimation of Parameter in statistics there are two types of estimation, i. Point Estimation  ii.…

Q: What two characteristics of an empirical distribution can DECREASE the size of the standard error?

A: The two characteristics of an empirical distribution that can decrease the size of the standard…

Q: What do you mean by Multivariate Distributions?

A:

Q: Confidence intervals can only be computed for the mean?

A: A confidence interval is the interval that estimates the unknown population parameters. It gives the…

Q: Probability plot is used to check the normality of sample data and that if it adequately describes…

A: The given statement is 'Probability plot is used to check the normality of sample data and that if…

Q: a Compute the relative risk of coronary artery disease in patients receiving the new medication as…

A: Given Data :   Number of Participants Number with Coronary Artery Disease Cholesterol…

Q: Why is probability theory important to statistics?

A: The probability of an event:The probability of an event is obtained as the ratio of favourable…

Q: What is the difference between descriptive statistics and inferential statistics and can you give an…

A: Descriptive statistics: Descriptive statistics is used to summarize the data and to give graphical…

Q: The coefficient of variation is the same as the variance O a measure of central tendency a measure…

A:

Q: How can we calculate the probability-weighted average of the squared deviations?

A:

Q: True or false: if you did a retrospective study to determine the risk of disease for individuals…

A:

Q: explain the variability that happens during normal distribution and why it happens.

A:

Q: The "true" variance is also the population variance True False

A: # Relation between True varience and population varience ?

Q: Chebyshev's Theorem states that the percentage of measurements in a data set that fall within three…

A: The Chebyshev's theorem provides bounds on the probability for distributions for which mean and…

Q: Are relative risk of 2 and 0.5 the same or different in strength of association?

A: Relative Risk It is the proportion of occurred disease or mortality among the population group which…

Q: How to estimate distribution

A: Steps to estimate a distribution1) Split the sample space into bins2) Count the no of samples that…

Q: Define Inferential Statistics?

A: Inferential statistics use a random sample of data taken from a population to describe and make…

Q: What does it mean when a score is in the tail of a distribution?

A: The distribution in statistics or probability is the shape in which the data behaves when plotted.…

Q: "Asbestos represents one of the most heavily studied occupational and environmental hazards of human…

A: Odds Ratio:   The measure of association between the exposure and an outcome in a population is…

Q: nferential statistics is the branch of statistics that draws conclusions about? Based on what…

A: Inferential statistics :  It is a branch of statistics that uses random sample from the population…

Q: What is formula for the variance of the population?

A:

Q: Inferential statistics is the branch of statistics that draws conclusions about?

A: Inferential statistics helps us to draw conclusions and inferences based on data collected for a…

Q: true or false. as the degrees of freedom increases, the variability of the chi-square distribution…

A: On increasing the degrees of freedom of chi-square test, the curve becomes less skewed, so less…

Q: Discuss the importance of real analysis in statistics?

A: Here are some Importance of real analysis Statistics.

Q: True or False? Relative risk is an ideal form of measurement for a retrospective cohort study design…

A: Relative risk is the ration of risk of an event for the exposure group to the risk of an event with…

Q: How to find Cumulative frequency distribution?

A: A cumulative frequency distribution is the sum of the class and all classes below it in a frequency…

Q: Are the observed frequencies variables? What about the expected frequencies? Explain your answers.

A: Chi-square Distribution: If X ~ N(0,1) then X2 is known as chi-square variate. If X ~ N(µ,σ2) then z…

Q: a) Briefly explain the Normal Distribution, its derivation and use.

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Statistically what is “all the children are above average.” mean

A: The mean (average) is referred to the central measure of the given data. The mean value indicates…

Q: discuss the shape of the distribution of the variable  WEIGHT.

A: From histogram we want to tell the shape of distribution

Q: You conducted a study to assess the effect of smoking on systolic blood pressure. The results showed…

A: Solution:

Q: How does a binomial distribution differ from a distribution of a population or a distribution of a…

A: Binomial distribution is the distribution of the total number of success favouring any event.It is…

Q: The value α that represents the probability of type I error is often referred to as the…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Discuss the relationship between the margin of error and the standard error of the mean.

A:

Q: Scatter can be summarized using the standard error of estimate?

A:

Q: What is the absolute risk? Give an example of how it is interpreted.

A: We have to define absolute risk and also have to interpret it using an example

Q: Different between descriptive and inferetial statistics. What is the scalse of statistics in bank…

A: Statistics: Statistics is a branch of science that deals with collection, organisation, analysis of…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.