Class 20-22 23-25 26-28 29-31 32-34 Frequency 3 2 1 32 Calculate Quartile-2, Decile-8, Percentile-20 from the following grouped data

Q: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.  Explain…

A: Given: The 95th percentile of 6-year-old boys' heights in the United States is 48.8 inches tall.

Q: Identify the level of measurement for data that are cooling temperatures (in degrees Fahrenheit) for…

A: Introduction: Levels of measurement: Nominal: When the possible observations are tags or categories…

Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: Part 2 x²0.025,15

A:

Q: What scale of measurement is being used when a teacher measures the number of correct answers on a…

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Q: The heights of a group of men averaged 69 inches and followed the normal curve. The 91st percentile…

A: Solution: Let X be the height of group of men. μ= 69 inches  Average height of men.  The 91st…

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: Calculate the 3rd quartile, 9th decile and 46th percentile c the distribution

A: The partition is the measure which divide the data set into equal number of parts. Some of the…

Q: Make a table showing the approximate values and the actual value, together with the percentage error

A: xy'=12x-3y..................1Let x=e2z=logxdzdx=1xdydx=dydz·dzdx ⇒dydz·1xxdydx=dydzNow equation (1)…

Q: Find the attached file.

A: Given: 1125 2978 1172 1507 4776 3801 2015 2463 4388 135 3967 1674 1437…

Q: which is more meaningful in ranking academic performance quartiles or deciles

A: A data set's quartiles divide the data into four equal parts, each containing one-fourth of the data…

Q: 1980 alcohol consumption per capita in the United States? (Round to the nearest percent.)

A: Given: The data given is as follows Australia 9.7 Austria 11.1 Belgium 11.5 Canada 7.6…

Q: 4.39,4.47,4.21,3.86,3.72,3.64,3.77,4.60,3.82,4.87,3.94,2.91,4.88,4.21

A: Formula : CV = (standard deviation /mean)

Q: You take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

A: Let X be a random variable from standard normal distribution with mean = 0 and standard deviation =…

Q: Find the absolute and percent relative uncertainty

A: Absolute relative uncertainty is the ratio of the uncertainty to the reported value. For example, if…

Q: what does being in the 60th percentile mean?

A: Given that 60th percentile   Let a student got 60th percentile in a exam

Q: Explain the difference between quantitative and qualitative measures. Provide an example of each.

A: Introduction Statistics is a field that involves collection, arrangement and analysis of the data to…

Q: Calculate First and Third Quartiles for the data: 210, 179, 224, 317, 189, 185, 191, 217, 225, 188,…

A: For the provided data, the first and third quartiles are;

Q: What is the percentile rank of a bag that contains 1025 chocolate​ chips?

A: The mean is 1252 and the standard deviation is 129.

Q: The mean GPA for 138 residents of the local apartment complex is 1.9. What is the best point…

A: Solution: From the given information, the mean GPA for 138 residents of the local apartment complex…

Q: Identify two types of variables and four scales of measurement. How they are related with each…

A: Variables: In statistics, variable is defined as an entity which may takes different values. It…

Q: Calculate the Percentile Rank for a student who becomes fourth (4th) in terms of the GPA categorized…

A: The formula for percentile rank of score is, Percentile rank of score=Number of values below…

Q: Classify the variables by the levels of measurement used. Explain why you choose these of the…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The following DBH values were collected from a pine plantation. Please find the population, range,…

A: Our aim is to find the range , mean , median , mode from the given sample data.

Q: The percentile gives an indication of the relative position of the scores. True or False?

A: Partition values are the values which divide the series into a number of equal parts.  * Three…

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: Find the percentile rank of a test score of 76 for the data set 70,73,68,83,78,80,89,88,65

A: Solution-: Given data:  70,73,68,83,78,80,89,88,65 We find percentile rank of a test score of 76=?

Q: Can you help figure out what percentile 78/345 is please? I need to know if it is above 80% .

A: Percentile: The value below which a percentage of data falls is known as the percentile. The formula…

Q: Calculate the 60th percentlle of the data shown 2.7 7.3 9.6 10.1 12.1 21

A: Given that, The number of observations is given. Percentile is given by,

Q: rage sales per agent per month from March to May target? Answer: % Which one is the category with…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: doctor is studying the effects that the amount of junk food has on blood pressure.  As each patient…

A: Here  Observational study means Simply data is collected without interfering the objects..m While In…

Q: one percent of grades are greater than what z-score?

A:

Q: Please match each of the research studies below to the following :  - Difference between means -…

A: In a research study, the parameter of interest is essentially based on the quantitative…

Q: What is the percentile rank x=15 and what is the score for 75th percentile?

A: If the we have no of scores is 15 then we have formula for percentile rank as:…

Q: examine four levels of measurement?

A: There are four levels of measurement  nominal ,ordinal  and interval /ratio  – with nominal being…

Q: Identify the level of measurement used for the following variables. Choose among nominal, ordinal,…

A: Levels of measurements are also called scales of measurement. There are mainly 4 levels of…

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

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Q: 10

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