Given the following, answer the R Studio Questions

The Global Terrorism Database (GTD) contains a repository of terrorist events that have taken place across the world. It is developed and maintained by the National Consortium for the Study of Terrorism and Responses to Terrorism at the University of Maryland. The variables in the dataset are:

• gtd_id: Used to indicate the ID # of an incident.
• year: This field contains the year in which the incident occurred. In the case of incident(s) occurring over an extended period, the field records the year when the incident was initiated.
• month: This field contains the number of the month in which the incident occurred. In the case of incident(s) occurring over an extended period, the field records the month when the incident was initiated.
• extended: Variable with two levels.
  • "Yes" The duration of an incident extended more than 24 hours.
  • "No" The duration of an incident extended less than 24 hours.
• Inc_crit (Inclusion Criteria): Variable with three levels. This variable records which of the inclusion criteria (in addition to the necessary criteria) is met
  • Criterion 1: Political, economic, religious, or social goal (CRIT1)
  • Criterion 2: Intention to coerce, intimidate or publicize to a larger audience(s) (CRIT2)
  • Criterion 3: Outside international humanitarian law (CRIT3)
• attack_type: This field records the general method of attack and consists of the following categories:
  • Assassination
  • Hijacking
  • Kidnapping
  • Barricade
  • Incident
  • Bombing/Explosion
  • Armed Assault
  • Unarmed Assault
  • Facility/Infrastructure Attack
  • Unknown
• total_num (Total Number of Fatalities): This field stores the number of total confirmed fatalities for the incident. The number includes all victims and attackers who died as a direct result of the incident.
• prop_dmg (Extent of Property Damage): Variable with four categories that describe the extent of the property damage:
  • 1 = Catastrophic (likely > $1 billion)
  • 2 = Major (likely > $1 million but < $1 billion)
  • 3 = Minor (likely < $1 million)

Q1:

What level of measurement is "gtd_id"?

Group of answer choices

nominal

ordinal

interval

ratio

Q2:

What level of measurement is "year"?

Group of answer choices

nominal

ordinal

interval

ratio

Q3:

What level of measurement is "inc_crit"?

Group of answer choices

nominal

ordinal

binary

ratio

Q4:

What level of measurement is "extended"?

Group of answer choices

nominal

ordinal

binary

ratio

Q5:

What level of measurement is "total_num"?

Group of answer choices

nominal

ordinal

interval

ratio

Q6:

What level of measurement is "prop_dmg"?

Group of answer choices

nominal

ordinal

interval

ratio

Q7:

You decide to run a statistical test to evaluate whether the number of total confirmed fatalities for an incident (total_num) can be predicted by the type of attack (attack_type). In this test, "total_num" would be your:

Group of answer choices

independent variable

dependent variable

Q8:

You decide to run a statistical test to evaluate whether the extent of property damage (prop_dmg) can be predicted by the number of total confirmed fatalities for an incident (Total Number of Fatalities). In this test, "total_num" would be your:

Group of answer choices

independent variable

dependent variable

Q9:

Select the variable(s) in the list that would be considered categorical:

NOTE: Select all that apply.

Group of answer choices

gtd_id

year

month

extended

inc_crit

attack_type

total_num

prop_dmg

Q10:

Calculate the standard deviation for the following set of numbers using the equation Z = x-Mean/SD

{60, 45, 72, 84, 71, 46, 51, 56, 8, 64}

You will need to round your final answer to 2 decimal places.

Q11:

Calculate the variance for the following set of numbers using the equation Z = x-Mean/SD

{43, 72, 47, 48, 50, 66, 67, 68, 3, 78}

You will need to round your final answer to 2 decimal places.

Q12:

Calculate the sum of squared residuals (SS) for the following set of numbers using the equation Z = x-Mean/SD

{57, 78, 74, 72, 45, 87, 82, 74, 43, 77}

You will need to round your final answer to 2 decimal places.