Why is it ideal that you report underlying frequencies when you are reporting percentages?

Q: What is the cumulative relative frequency for 2006

A: Cumulative Relative Frequency: Cumulative frequency is the collection of all previous frequencies…

Q: What is the level of data corresponding to a military rank (Lieutenant, Captain, Major)? interval…

A: What is the level of data corresponding to a military rank (Lieutenant, Captain, Major)? interval…

Q: How can we calculate the Average Rates of Change?

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Q: What do you mean by the differences estimator and how it is calculated?

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Q: In 2016, the 50th percentile score for household income in the United States was 59.039$. what…

A: The 50th percentile score for household income in the United States is $59.039.

Q: What is the importance of direct and inverse variation in predicting real life scenarios?

A: We discuss the importance of direct and inverse variation in predicting real life scenarios.

Q: Briefly explain what is meant by the term “descriptive statistics”.

A: We have to describe descriptive statistics here

Q: The proportion of the variability in sales accounted for by the price of the product is

A: Given; summary of the fitted regression model between x=price and sale=y  Then to find proportion of…

Q: How do you construct a frequency distribution.

A: Frequency distribution is a tabular or graphical representation of the frequency of individual data…

Q: Find the relative risk for the headache data.

A: here use given information , For treatment group n = 2142 x= 22 (reported headache)   for control…

Q: A researcher finds that the correlation between the personality traits"greed" and "superciliousness"…

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Q: How do I find the proportion of a histogram

A: Histogram is the best visualization technique for continuous quantitative data.

Q: What is the formula to find weighted mean.

A: Weighted Mean: A mean in which some values are more important than others.

Q: When data is normally distributed the mean equals the mode. True

A: Normal distribution

Q: How to estimate the Difference Between Two Means?

A: Suppose we willing to estimate the difference in average of population 1 and population 2, that…

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

Q: i believe its the explanation What is the sum of all frequencies in a frequency distribution

A: the sum of all frequencies in a frequency distribution is a cumulative distribution function .

Q: If we add a constant (say, d) for all data values, how this will affect the geometric mean? and what…

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Q: Briefly explain the differences between the terms true relative error percentage and approximate…

A: True error is that the true value of a problem, equation, or something measurable is one value and…

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: You can calculate an average/mean of qualitative data. True or False

A: mean , median and measure of spread  can't be calculated for qualitative data, because no natural…

Q: a value represents the 95th percentile, this means that

A: Here Percentile means the value equal to or below which the data points lies.  option A says that…

Q: Define relative efficiency?

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Q: What is the difference between the average resistance to happiness at age 20 and at age 70?

A: Given :-  R = 4.6 - 0.02x put x = 20. ⇒R=4.6 - 0.02 × 20⇒R=4.6 - 0.4⇒R=4.2 Now, put x = 70 ⇒R=4.6 -…

Q: The range, like the mean has the disadvantage of being influenced by outliers True O False

A: This question can be solved using the concept of outliers.

Q: The median is equal to the 5th decile. True or False?

A: Solution

Q: O B. Yes, the pulse rate of beats per minute appears to be an outlier because it is far away from…

A: Answer 77)  The expression Zα  denote the Z score with an area of αto its right.    p(z>zα)=α

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: What Percentage of deaths occurred after 2006?

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Q: Give the statistical meaning of the relationship between the spending hours on using mobile and…

A: Answer: When we check the relationship between two variables then scatter plot is best plot to…

Q: What are percentiles useful for  a. showing frequency b.comparing values  c. showing…

A: Introduction: It is requires to identify the option that describes the purpose of percentiles.

Q: what is the difference between frequency and relative frequency?

A: To know the difference between frequency and relative frequency, we first need to know about…

Q: Can statistical concepts help in daily life?

A: Statistical concepts are used to describe the features or behaviors of the data. Statistical…

Q: What is the value of the variance if the mean of a frequency distribution is 100 and the coefficient…

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Q: Mean is advantageous than the median because a. It is not influenced by extreme values

A: The mean is the average value of the data set and is computed by summing up all the observations and…

Q: how to get percentage scores between the mean and the z score

A: I am taking an example to explain this Suppose mean weight of students is 100 kg and Standard…

Q: Explain the purpose of a measure of variation.

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Q: what is the distribution of the coefficient of variation?

A: A coefficient of variance is used to determine the precision of an estimated value. It is primarily…

Q: What is the equation of finding an estimate on a negative scatter plot

A: Here we want to find . equation of finding an estimate on a negative scatter plot

Q: The table below shows the number of cars (in millions) sold in the United States for various years…

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Q: Explain why the relative frequency column of a frequency table might not sum to 1.0.

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Q: Suppose the correlation between height and weight for adults is +0.40.What proportion (or percent)…

A: Given that correlation between height and weight for adults is 0.40.So r = 0.40.The Coefficient of…

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: Suppose you are told your BMI is 32, the  70th percentile for your age and sex. Please interpret…

A: Introduction: The pth percentile of a set of observations is the value below which, p% of the…

Q: Give the statistical meaning of the relationship between the spending hours on using mobile and…

A: Solution: n= 10 observation let x=Using phone days  and y= using reading days   x y x^2 y^2 xy…

Q: what is the general trend for frequency rate?

A: A trend is a general direction into which something is changing, developing, or veering toward. The…

Q: Explain the effect of α level on power?

A: