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Download the file stroke dataset.csv to your R working directory on your computer. Then read the csv file into an R data frame called strokeDF. (As always in R, be sure to pay attention to case. Here the data frame name is lower case “stroke” and upper case “DF.”)   Each row represents a person. For each person there’s an ID number, then ten characteristics (that should be self-explanatory). The last column indicates whether that indvidual had a stroke or not. Ultimately you will be asked to build and evaluate a Naive Bayes model to predict the occurrence of a stroke.   There are no missing values in the data. The variable smoking_status includes values called “unknown.” For this exam, this is fine — just treat this as another value. (That is, you don’t have to do anything to deal with this.)   How many people (rows) are in the data frame?

Enter below an R command that will output the mean charges for each region.[7c831e56-c17a-48db-abc7-d861fd3a3f98]

This is a color Doppler of a normal artery and vein. What uniform color would the upper vessel be if the color scale was increased?

What adjustment was made in order to change the image on the left to the image on the right?

What adjustment can the sonographer perform that would create a uniform color in vessel #1?

III. Structure A. Plus ou moins?  Compare each set of items using the cues in parentheses to express that one item is more than (+), less than (–), or the same as (=) the other. (4 x 1 pts. each = 4 pts.) Modèle:  You see: (+ petit) Un studio est __________________________________ qu’une maison. You write: plus petit *Please do not add additional information as Canvas will flag your answer as incorrect.

The two circles in the image below are an artery and a vein. Which of the circles, 1 or 2, if the artery? Can you explain this with a rationale based on ultrasound physics?

Why did the Whiskey Rebellion start in the United States?

” The First Engagements of the Revolution.” Lexington and ConcordConsider the map, ” The First Engagements of the Revolution.”  Judging from the troop movements, how did the British react to the fighting?

On couvre (cover) la table avec une serviette.