Gaussian random

Let X be a Gaussian random variable with mean 3 and variance 1. What is the distribution of the random variable Y= -3X+4? Not a Gaussian distribution O O A Gaussian distribution with mean -5 and variance 9 A Gaussian distribution with mean -5 and variance 3 O A Gaussian distribution with mean -9 and variance 9 OThe density f (a) = e 12 /2 correspond to a 2 TT O Binomial random variable X O geometric random variable O uniform continuous random variable O standard normal random variable O Bernoulli random variable O exponential random variableDetermine whether the following variables are random or not: 1. The time it takes to commute to school. 2. The number of days in a week