With what level of data is a histogram most appropriately used?

Q: What is a frequency distribution of qualitative data and why is it useful?

A: Frequency distribution: Sometimes an event will be occurred two or more times, the number of…

Q: For a qualitative data set, what is a a. frequency distribution?b. relative-frequency distribution?

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Q: Among the measures of center discussed, which is the only one appropriate for qualitative data?

A: Measures of center: Mean: The arithmetic mean (also called the mean) is the most commonly used…

Q: . Are the data consistent?

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

Q: Explain the meaning of the specified term. Population data

A: Population: A ‘population’ is defined as a set or collection of all the individual persons, objects,…

Q: Which variable, mean or median, is the better representation of the center for this data set? Why?…

A: Introduction: As you have specifically asked whether it is better to use the mean or the median for…

Q: Mika studies if age correlates with the average number of hours of sleep, so she selected a random…

A: Given: Age(x) 8 15 22 27 34 40 Sleep(y) 8 8 7 7 5 6

Q: and correlation analysis, in what scales of measurement must the variables be expressed?

A: Answer: In order to carry out simple linear regression, we need variety of dependent variables and…

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: The median for the dataset used to create this histogram could possibly be in which range?

A: Frequency Distribution table : Class Frequency Cumulative Frequency 2-4 1 1 4-6 4 1+4=5 6-8…

Q: How can the specific characteristics of a population affect the analysis of data?

A: The basic data which is collected for any population before the analysis of data is their…

Q: When would it be appropriate to use a histogram as opposed to a scattergram?

A: Given information: It is provided with two diagrams or graphs or plots: histogram and scatter…

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: Suppose that you have a data set that contains a large number of observations. Which graphical…

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Q: What is the mode of the data shown below?

A: Given : We have given data of stem and leaf    stem  Leaf 1 1,2 2 2,3,8 3 3,4,5 4 0,0,1…

Q: why do we need to find the measure of relative position of ungrouped data? and what is the position…

A: We know that the no single average is suitable for all practical purpose of data.each one of the…

Q: The Bank of Canada is interested in studying the relationship between mortgage rates and median home…

A: Given information: The data represents the values of the variables Interest rate (%) and Median home…

Q: For a particular population, is the population mean a variable? What about a sample mean?

A: Explanation:Since the population mean is constant, it cannot be variable. Population mean is a…

Q: In the concept of Inter quartile range (IQR), it divides the whole data set into ---- parts. Select…

A: When a data has extreme values (highest and lowest values), its statistics is summarized by…

Q: Which data set graphed below would most likely consider the MODE as the best measure of central…

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Q: Is the number of limbs a person has considered discrete data?

A: Discrete data can only take distinct values. There may be finite or infinite number of those values,…

Q: Does this table data include mean, median, or mode? What kind of level of measure is used?

A: The data consists the monthly cost of groceries for college students of 51 states.

Q: Why does the observed mean difference should not be taken seriously?

A: Mean difference(MD): Mean Difference is also known as Difference in means. Mean difference measures…

Q: Dr. Volk wanted to see if there was a significant association between in the number of college…

A: H0 : There is no association between in the number of college students by grade level (Freshman,…

Q: What is the difference between grouped data and ungrouped data? In which situation should grouped…

A: Ungrouped data is the raw data given as individual data points. Grouped data is the data given in…

Q: When it comes to statistics, what are variables and operational definitions? What is their purpose…

A: Operational variables usually define and measure a specific variable as it is used in the study.…

Q: When describing a data set, the mean is used with and the median is sed with Z-scores are used to…

A: When describing a data set, the mean is used with average and the median is used with middle value.

Q: What is the variable of interest in this data set and what is the type of this variable?

A: Here given dataset of 25 army inductees in Ontario given a blood test to determine their blood type…

Q: Which of the following is not a criterion for evaluating secondary data? *

A: Data is secondary when we don't collect it ourselves and work on a data collected by someone else.

Q: If a data set has 15 mean standard daviation 2 , percentage observation lie between 13 and 17

A: From the given information, Consider, X be the number of observation that has mean of 15 and…

Q: It is a level of measurement for categorical data, where numbers are assigned to non-numeric data

A: We know that there are four levels of measurement, two are used for categorical data amd two are…

Q: When selecting measures of association and the two variables of interest are measured at different…

A: In Statistics, measure of association is used to quantify a relationship between two or more…

Q: In one or two sentences describe your population. What did you use for your qualitative data? Is it…

A: 1. From the given information, the pie chart is given for species under three categories. In the…

Q: The most frequent data value is called Select one: a. mode b. mean C. variance d. median

A: We have to find out the correct answer for given data the most frequent  data value is called…

Q: What is the upper quartile of the following data: 4, 1, 4, 3, 6

A: Given that data  4, 1, 4, 3, 6 Formula for upper quartile Q3. Q3=(3(n+1)/4)

Q: Is there a linear association between age and days? Explain using the sample illustration below.

A: Scatter plot is a graph that shows the direction as well as linearity of the relationship between…

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: The percentile corresponding to the data value 25 is

A: Percentile is the location measure. It divide the data set into 100 equal parts with 99 points.…

Q: What is primary data?

A: In this case, we need to define the primary data.

Q: Why is hair color classified as categorical data?

A: In categorical variable we simply assign labels for identification. Categorical values are discrete…

Q: Draw a histogram to illustrate the data.

A: It is been asked to construct a histogram using given frequency table.

Q: Based on the histogram, draw the ogive (the cumulative relative frequency polygon) for her data.

A: By using the histogram, the cumulative relative frequency is, Completion time Relative frequency…

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: What is the level of Measurement and type of data?

A: Level of measurement describes the nature of data The  four levels of measurement are : nominal,…

Q: Which type of statistical information or graph would be most helpful in determining whether the…

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Q: Explain the concept of Range Restriction, and the issue it may pose to correlation statistics

A: The restricted range occurs when the range of the data from a variable is limited. Thus restricting…

Q: Can you Describe the role of primary data and secondary data in the classification of data with…

A: Primary Data-The data which will be collected for the first time by the research development people…