7. The list shows the number of visitors entering the zoo each hour on Saturday. What is the interquartile range of the data? 30, 48, 22, 47, 10, 30, 38, 20, 45, 15 Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Q: how are parameters and statistics related?

A: Parameter: The parameter is used to explain the entire population. For example, a teacher calculated…

Q: The top schools HCC students transfer to are below from highest to lowest.  This type of data is…

A: We have given the following statement

Q: What is the coefficient of determination for the data above?

A: Step-by-step procedure to find the regression line using Excel: In Excel sheet, enter x and y in…

Q: What does Qualitative data consist of?

A: Qualitative data: Qualitative data is defined as the data that categorize or classify the…

Q: Which of the following sets of data represent valid functions? OS = {(0, – 1), (3, 1), (6, 4), (7,…

A: Function: A function from X to Y denoted by f:X→Y is defined as the given set of order pair x, y…

Q: Highlight the precautions for use of secondary data

A: The objective of this question is to understand the precautions that need to be taken while using…

Q: At the end of the semester the lecturer runs a regression using the student's final grade as the…

A: Let the regression equation be y=mx+b where, y is the dependent variable mx is the estimated…

Q: In the symmetric data histogram: Mean = Median = Mode Select one: True False

A: The normal distribution  in the center is generally denser and basically less dense at the tails.…

Q: Explain why the minimum and maximum observations are added to the three quartiles to describe better…

A: Quartile: Quartiles are the values which divides the data into four equal parts. First quartile:…

Q: Distinguish briefly the Parameters and statistics

A: A parameters is a values that describes some aspect of a population . A parameters may be very…

Q: A residual plot has data points that are all very close to the x-axis. What does this say about the…

A: A residual value is defined as the difference between the observed value and the expected value…

Q: If there is a large amount of variation, then on average, the data values will be far from the mean.…

A: The given statement is 'If there is a large amount of variation, then on average, the data values…

Q: Which criterion is used for deciding which regression line fits best?

A: Least-squares property: If the sum of the squares of the residuals is expressed as smallest sum…

Q: how will you relate the formulas for quartiles and deciles of grouped data?

A: The formula for the ith quartile is: Qi=L+in4-cff.w Where L is lower bound of the class, c.f is…

Q: How are the moving averages calculated?

A: A moving average is a technique to get an overall idea of the trends in a data set; it is an average…

Q: To examine bivariate data graphically, the best choice is two side by side histograms? Define this…

A: Introduction: A histogram is a graphical display mainly used to plot a univariate continuous…

Q: Why shouldn't you extrapolate and how to deal with samples reading out the dynamic range?

A: Extrapolation is prediction far outside the range of the data. These predictions may be incorrect if…

Q: The most commonly used measure of central tendency

A: here use basic of central tendency

Q: solve the range and median only of the two tables

A: RANGE calculated as the difference between the lower limit of the minimum interval and upper limit…

Q: how to take correlation analysis from below data set via spss.

A: The data set provides information on temperature change with respect to baseline climatology across…

Q: Should averages be taken literally? What are the drawbacks?

A: Average is a summary statistic that represents the center point or typical value of a dataset. It…

Q: What equation should be used in significance of the value found in scatter diagram of the data

A: A scatter plot is a graphic tool used to display the relationship between two quantitative…

Q: how do I describe the "measures of center and variability" of a chart?

A: The commonly used measures of center tendency are, Mean Median Mode In charts like histogram, the…

Q: Mean, Median and Mode for data set (Z, 10, 0.4, 0, -11, N, -20, M, -11.1, W, N): Mean = -5.28,…

A: Given : -20, -11.1, -11, 0, 0.4, 10, M, N, N, W, Z Mean = ∑Xin Mean = -20+-11.1+-11+0+0.4+106 Mean =…

Q: Regression and correlation are used for estimation. Select one: True False

A: The most commonly used estimation techniques for investigating the relationship between two…

Q: What are the best measures used used for data variation or dispersion

A: Measures of variability: The measure of variability or the measures of dispersion can be measured…

Q: True or False: If you are asked to describe the type of data represented by distances from gas…

A: Given that  The type of data represented by distances from gas stations to your home

Q: Describe why a. data description using graphical methods sometimes is not sufficient b. measures of…

A: Here we have to describe,  a. Why the graphical methods sometimes is not sufficient? b. Why measures…

Q: How does the squared curvilinear correlation calculated?

A:

Q: Indicate that they are qualitative and quantitative data, give 2 specific examples and indicate when…

A: To give examples of qualitative and quantitative data and provide the definition

Q: You can assess normality of data using

A: