Question

x denote the number of scores on a test. if x is normally distributed with mean 100 and standard derivation 15,find the probability that x does not exceed 130

Answer 1

Answer:

We say that a random variable X follows the normal distribution if the probability

density function of X is given by

f(x) = 1 /σ √ 2π e − 1/2  2 ( x−µ σ ) 2 −∞ < x < ∞

This is a bell-shaped curve.

hope this answer helps you

please mark me the brainliest