A professor wants to see the relationship between class size and final exam performance. Class Size (X) Final Exam (Y) 25 80 14 98 33 50 28 82 20 90   The following have whole number answers. As such please write only the number and not any decimal. For example write "1" and not "1.0". If any answer is negative, put the negative sign in front of the answer. For example write "-1".    What is ΣXY?                What is ΣX?                  What is ΣY?                   What is SP?                   What is SSx?                                 What is SSy?                 What is the Pearson Correlation (r)?

Q: The coefficient of determination that will be computed of the following data for the maintenance…

A:

Q: Physicists and chemists often use the Kelvin temperature scale. In order to determine the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Twenty-five right-handed students were asked to turn a knob (using their right hands) that moved an…

A: Any assumption about the parameter or probability function is known as Hypothesis testing. For the…

Q: Ocean currents are important in studies of climate change, as well as ecology studies of dispersal…

A: Simple linear regression model: A simple linear regression model is given as y^ = b0 + bx + e…

Q: State whether the data described below are discrete or​ continuous, and explain why.The widths (in…

A: Discrete data means, The data which is based on only a finite number of values that is variable…

Q: Q4. Suppose you have the following two documents: How similar are the documents using Cosine…

A:

Q: X 1 2 3 4 5 6 Rel. Freq. .05 .2 .15 .3 .15 .15 Find the Mode ____________ Find the Mean __________

A:

Q: Ocean currents are important in studies of climate change, as well as ecology studies of dispersal…

A: x y x2 y2 xy 76 14.2 5776 201.64 1079.2 79 19.6 6241 384.16…

Q: O We expect that the covariance between the temperature and the consumption of beer is positive

A:

Q: CL  f 3    -  9 10 - 16 17 - 23 24  - 30 4 11 8 4    Find    (a)  Mode            (b)…

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

Q: P= _____*_______+________

A:

Q: 8) ŷ = 0.36 for the relationship between income (below average, average, above average) and…

A: Given: Gamma cap : measure of association between income and happiness = 0.36 95% CI of gamma = […

Q: Q: Table The gives in a the frequency for the cholesterol values of 50 patients in a rehabilitation…

A: Data represents cholesterol values of 50 patients in rehabilitation study. (a) Following are the R…

Q: The average GPA of all 3000 students at a college is 2.84. A sample of 100 students has a mean GPA…

A: We have given that  Population size N= 3000  Population mean = 2.84  Sample size n= 100 Sample mean…

Q: State whether the data described below are discrete or continuous, and explain why The speeds of the…

A: variable: Speed of different peoples walking in a park

Q: A person is interested in assessing the relationship between the average number of cigarettes smoked…

A: Use the Excel and Perform the Regression. Followings are the Steps to perform the Regression 1) Open…

Q: State whether the data described below are discrete or continuous, and explain why The exact…

A:

Q: A doctor is interested in seeing the relationship between age and blood sugar level. Age (X) Blood…

A: x y xy xi-x¯2 yi-y¯2 43 99 4257 105.0625 380.25 21 65 1365 138.0625 210.25 25 79 1975…

Q: The scatterplot illustrates the relationship between distance and success rate of field-goal…

A: Given,

Q: 2 4 P(x) 1/6 Find y and construct a histogram to describe P(x). 2/9 y/18 2/9 1/9

A:

Q: Use the following data to answer the problem below Subject Ms Chemistry 70 12 Math 28 7 John scores…

A: Given : For math  Test value =x= 26 population mean=M = 28 population standard…

Q: A 1. Why should you look at images, films, and audio sources as you read for a research project?

A: option C

Q: Type of degree Cor Associate's 2 Bachelor's 4 Master's 3 Doctoral 28 The number of earne conferred…

A:

Q: What is the input & output of RTD? O a. Temperature & Voltage Change O b. Pressure & Resistance…

A: RTD is the Resistance Thermometer.

Q: When the change in a variable 'x' directly causes the change in another variable 'y' that is an…

A: Here the variable x directly causes the change in another variable y.

Q: Can you help with parts d, e, and f please? The Admission director for a college far from mart and…

A:

Q: onsider the following data: - 4 - 3 - 2 - 1 P(X = x) 0.2 0.1 0.2 0.1 0.4 Step 4 of 5: Find the value…

A:

Q: Suppose you are interested in explaining maximum July temperatures in degrees Fahrenheit and…

A:

Q: Scores 51-58 59-66 67-74 75-82 83-90 91-98 Class Mark, X 54.5 62.5 70.5 78.5 86.5 94.5 Frequency, f…

A: Given data is Scores Class Mark,X Frequency,f 51-58 54.5 3 59-66 62.5 7 67-74 70.5 15…

Q: One spring day, Aisha noted the time of day and the temperature, in degrees Fahrenheit. Her findings…

A:

Q: 0.7 0.8 0.9 1.1 h(q) 652 614 579 545 513 Estimate h' (0.9) using the table above. h'(0.9) 2 Preview

A: Find the slope at x = 0.9 and x =1.

Q: Gestation and Average Longevity Is there a relationship between the gestation of a sample of animals…

A: Hello, since your question has multiple parts, we will solve the first question for you. if you want…

Q: State whether the data described below are discrete or continuous, and explain why. The land areas…

A:

Q: Which of the following can be classified as Discrete and Quantitative data. The different colors of…

A:

Q: Look at the data below regarding the variables x = lowest barometric pressure as a cyclone…

A: b) The hypotheses are given below: Null hypothesis: H0: ρ= 0 Alternative hypothesis: Ha: ρ ≠ 0.…

Q: An article published by the American Meteorological Society, gives a rating system used to classify…

A:

Q: ind : c ) Does data provide evid. of an association between age and opinion of brand? Justify your…

A: (c) The objective is to determine whether the data provides evidence of an association between age…

Q: researcher wants to determine if the exam scores of the students are dependent on the length of time…

A: From the given data we predict the score.

Q: The numbers of hours worked (per week) by 420 statistics students are shown below. Number of Hours…

A:

Q: answer III , IV AND V b) The amount of money earned in a day by Ms. Anne’s craft shop was recorded…

A: Stem and leaf is the diagrammatic representation of the data into two parts. one part is the stem…

Q: Average High and Low Temperatures for Indianapolis, IN in 2016 90 80 70 60 50 40 30 20 10 Jan Feb…

A: Nominal Scale: the data which contains names only Order: scaling such as data points are in order…

Q: . An additional data value is added to a dataset. The new value is far below the rest of the data.…

A: Here Standard deviation Indicates the how data is spread from Mean value.

Q: Q.4. Calculate correlation between X and Y. X 3 4 7 Y 4 6 12 5 69

A: To calculate ; the correlation between x and y.

Q: he following data represent the monthly phone use, in minutes, of a customer enrolled in a fraud…

A:

Q: Find the quartic function that is the best fit for the data in the following table. x y -3 61 -2 9…

A: Given, x y -3 61 -2 9 -1 1 0 1 1 -3 2 1 3 49

Q: Ocean currents are important in studies of climate change, as well as ecology studies of dispersal…

A: Given values, Σx = 476, Σy = 87.1, Σx2 = 62,290, Σy2 = 2046.87, Σxy = 11121.3,and  r ≈ 0.94367.…

Q: Ocean currents are important in studies of climate change, as well as ecology studies of dispersal…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: A chemical engineer ending his shift at the factory noticed that the time is between 3 and 4…

A: Find your answer below

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.