Normal distribution

Question 1

x : continuous data

Answer 1

x can be a decimal number => number between an interval

Question 2

P(x < a) = P (x <= a) ?

Answer 2

Right! because P(x = a) = 0

Question 3

P(a < x < b) = ?

Answer 3

P(a < x < b) = P(a <= x <= b)