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Mathematics · Studypool

Mathematics Question

Overview

Here are the questions:

Question 1:

How many elements are in this data set?

Question 2

How many variables are in this data set?

Question 3

What is the maximum value of the variable "ID"?

Question 4

Sort the variable "ID" from lowest to highest. What ID number is in row 45?

Question 5

How many observations have value TRUE in the Arrest variable (this is the number of crimes for which an arrest was made)?

Question 6

How many observations have a LocationDescription value of ALLEY?

Question 7

Use the Year variable. In which year did the most crimes occur?

Question

By how much did crimes increase from the year 2019 to 2020?

Question 9

What is the average number of crimes per year? Round to 1 decimal place.

Question 10

Create a frequency chart for the number of thefts per year. In general, does it look like crimes increased or decreased from 2016 to 2021?

Group of answer choices

  1. Increased
  2. Decreased

Question 11

Use the variables Domestic and Arrest.

Domestic means: whether or not the crime was a domestic crime, meaning that it was committed against a family member (TRUE if it was domestic, and FALSE if it was not domestic).

Arrest means: whether or not an arrest was made for the crime (TRUE if an arrest was made, and FALSE if an arrest was not made).

Overall, how many vehicle thefts that were counted as Domestic resulted in an Arrest? In other words, how many crimes had Domestic and Arrest both valued as TRUE?

Question 12

Use the variables Domestic and Arrest. What percentage of domestic crimes did NOT result in an arrest? In other words, out of all of the vehicle thefts for which Domestic was counted as TRUE, how many times did those crimes have an Arrest value as FALSE?