Find the variance of the data

Q: Find the variance for this data set of salaries 30, 34, 52, 48, 25, 36, 27 Round the…

A: The mean of the sample data can be obtained as:

Q: Why data are skewed?

A: Skewed data: A data is called as skewed when curve appears distorted or skewed either to the left or…

Q: Create a scatter plot of the data

A:

Q: The variance of the data :. 6 ,6 ,-6,-6 is equal to

A: Find variance of the data  6 ,6 ,-6,-6

Q: Use the boxplot for radio station B to say whether the data are symmetric or skewed. If the data are…

A: Given the data and box plot for Radio station A and B.  We have to Use the box plot for radio…

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: Write down the steps for finding the median?

A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…

Q: write an analysis for the data above and what does the p value mean?

A: From the given information we find the solution.

Q: Draw a scatter plot.

A: Hello, since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Which measure of center is best to consider when more than 50% of your data is the same value?

A: Mean is the most frequently used measure of central tendency and generally considered the best…

Q: Suppose we flip a fair coin 50 times. What is the variance of the number of heads? Type your…

A:

Q: The average lifetime of a lightbulb is 10,000 hours. What units would the variance of the lifetime…

A: It is given that the average lifetime of a lightbulb is 10,000 hours.

Q: How will statistics play a part in a health provider's career?

A:

Q: The coefficient of variation of the data: 2, 2, 2, 2, 2, 2, 2 is 40% 20% 0% O O

A: Solution: x x-ˉx=x-2 (x-ˉx)^2 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 --- ---…

Q: The researcher found that the model’s effect size was very large where r = .957. Furthermore, r2 =…

A: The given information is, The value of correlation coefficient is, r = 0.957 The value of…

Q: State one disadvantage of displaying data in groups?

A: Statisticians or researchers collect, display and analyze the data for their purposes. After…

Q: A data set contains three points, and two of the residuals are -10 and -20. What is the third…

A:

Q: The position of data in a data set is determined by a. Percentage score O b. Mean of the data O .…

A: Percentile score: Percentiles are positional measures used statistical  data set to indicate  the…

Q: What is the direct variation?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: عند إرسال هذا Find the النموذج variance of the data انات التالية * 2,4,5,6.8.17

A: As per our guidelines we are supposed to answer only one question per post so I am solving first…

Q: The heights (at the shoulders) are: 600mm, 470mm, 170mm, 430mm and 300mm. Find out the Mean, the…

A: Here, x x-x (x-x)2 600 206 42436 470 76 5776 170 -224 50176 430 36 1296 300 -94 8836…

Q: If r = .80, then __% of the variance in the scores of one variable is associated with the variance…

A: It is given that the correlation coefficient r is 0.80.

Q: What type of association is shown in the scatter plot?

A: We have to choose the correct option from the given scatter plot.

Q: Find the mean and median to revenue

A: These mean and median are summary statistics

Q: dentify the type of data that would be used when the variable of interest is most-watched TV show

A: Identify the type of data that would be used when the variable of interest is most-watched TV show.…

Q: The net weight in pounds of a packaged chemical herbicide is uniform for 49.75 < x < 50.75 pounds.…

A:

Q: The data can be considered to be:

A: Here given grouped frequency distribution of speed.

Q: If r =.80, then _____ % of the variance in the scores of one variable is associated with the…

A: Correlation: Correlation analysis is used to measure the strength of the association between…

Q: find the value of the variance, What percentage of values are greater than 7 modes is, find the…

A: Given: Class Frequency 745-750 3 750-755 3 755-760 4 760-765 6 765-770 5 770-775 6…

Q: Which equation is the best fit for the data in the table? * Y 3 2 12 5 27 8 48 11 O…

A:

Q: What is ranked data?

A: The ranked data is mainly used in the non-parametric tests are they are performed on ordinal data.…

Q: What is the sum of squares for data set C

A:

Q: 2. Find the median survival.

A: Let, X be the time to failure of transplanted kidney in months. Given, X follows Weibull…

Q: How to find the relative and percent error in this data?

A: From the given data the equation is of linear type in the form of a line equation Y = a+bX The line…

Q: Does the mean represent the center of the data?

A: We have to write Does the mean represent the center of the data.

Q: Which term best describes the shape of the data distribution pictured?

A: In this case, a picture of a histogram is given. Generally, a histogram is used to find the shape…

Q: Which of the 2 predictors, Gest or Weight, is a better predictor of Height?

A: Solution:

Q: The value(s) that occurs most frequently in a data set is called the

A: we have to identify term used for the value(s) that occurs most frequently in a data set

Q: Consider the data (1.3). (2.5). (3

A: Given the data          1, 3, 2, 5, and  3, 9.67

Q: The distribution of number of people per household is

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: State whether the data discribed below are discrete or continuous, and explain why. The number of…

A: Discrete data can only take specific numeric values (whole numbers) and are countable. Continuous…

Q: Calculate the coefficient of determination for the data, and interpret the value in context.

A: Given Information: The table shows the annual income, in dollars and amount spent on vacation, in…

Q: Find the weighted mean

A: The average number of people who feel sleepy Number Weighting Factor(Number of days in a week)…

Q: SS tell about a set of data

A: The sum of squares of SS depicts the sum of squared differences from the mean. The sum of squares is…

Q: Find the z score for test scores of 70 _____ and 90 ______.

A: The z-score of a sample data is Here, mean is 70.3 and standard deviation is 13.5.