The disaster data is available on Canvas Modules Data > disaster.txt file. It is a tab- delimited text file. The data give the survival status of passengers, together with their names, age, sex and passenger class. Variable Description Recorded name of passenger Name PClass Age Sex Survived Passenger class: 1st. 2nd or 3rd Age in years male or female 1 = Yes, 0 No (a) Plot a graph to compare two qualitative variables: the survival status of passengers (us- ing the variable Survived) and passenger gender (using the variable Sex). You can use any graph you like. (b) Create a two-way frequency table using the variables Survived and Sex. (c) Assess the evidence that survival is independent of passenger gender (using the vari- ables Survived and Sex). disaster.txt ⑦

Graph the interaction. On the “Category Axis” box put “maternal diet”. On the “Define Lines by” box put “age. Paste the graph into a word document and upload the file.

A pediatrician records the age x (in yr) and average height y (in inches) for girls between the ages of 2 and 10. Height of Girls vs. Age 50- 40- (4,38) 30- 10- 0 Age(yr) Part: 0 / 4 Part 1 of 4 (a) Use the points (4, 38) and (8, 50) to write a linear model for these data. X y = Skip Part Check Height (in.) (8,50) Ⓒ2022 McGraw Hill LLC. All Rights Reserve A

The Toyota Camry is one of the best-selling cars in North America. The cost of a previously owned Camry depends on many factors, including the model year, mileage, and condition. To investigate the relationship between the car's mileage and the sales price for Camrys, the following data show the mileage and sale price for 19 sales (PriceHub web site, February 24, 2012). DATA file Miles (1,000s) Price ($1,000s) 22 16.2 29 16.0 36 13.8 47 11.5 63 12.5 77 12.9 73 11.2 87 13.0 92 11.8 101 10.8 110 8.3 28 12.5 59 11.1 68 15.0 68 12.2 91 13.0 42 15.6 65 12.7 110 8.3

Make a step by step Scatterplot of screen size vs. price. Explain in one sentence, does there appear to be a positive or a negative correlation between price and screen size? Paste a snapshot of the plot here. Please do not copy paste.  How to take snapshots: if you use a MacBook, press Command+ Shift+4 to take snapshots. If you are using Windows, use the Snipping Tool to take snapshots. What is the value of correlation coefficient between screen size and price? Discuss the direction of the relationship (positive, negative, or zero relationship). Also discuss the strength of the relationship.  Question 1: Estimate the relationship between screen size and price using a simple linear regression model and interpret the estimated coefficients. In your interpretation, tell the dollar amount by which price will change for each unit of increase in screen size. (The answer for the second part of this question will come from coefficients of screen size) Include the manufacturer dummy variable…

A back-to-back stem-and-leaf plot compares two data sets by using the same stems for each data set. Leaves for the first data set are on one side while leaves for the second data set are on the other side. The back-to-back stem- and-leaf plot available below shows the salaries (in thousands) of all lawyers at two small law firms. Complete parts (a) and (b) below. Click the icon to view the back-to-back stem-and-leaf plot. (a) What are the lowest and highest salaries at Law Firm A? at Law Firm B? How many lawyers are in each firm? At Law Firm A the lowest salary was $ At Law Firm B the lowest salary was $ and the highest salary was $ and the highest salary was $

Give definition of Cross-Sectional Data?

What level of data does the example​ represent?   Credit Card Number

What would be a suitable chart type to show the proportions of the sales by products?

Which of the following is the best way to graph the data in the table below? (b)AWH Changing Forests Study, 2016. Tree Species Red Maple White Pine Number of Trees 3 Red Oak White Oak Pin Oak Venn diagram Bar graph Scatter plot Line graph