#Questions on Data Set-Lecture

  1. What is the probability that a randomly selected individual in the dataset was unarmed at the time of the shooting?
  2. Calculate the mean and standard deviation of the ages of individuals in the dataset. What does this tell you about the age distribution?
  3. Is there a statistically significant difference in the ages of individuals with and without signs of mental illness? Use an appropriate hypothesis test.
  4. Find the proportion of shootings where a body camera was used. Construct a 95% confidence interval for this proportion.