From 28e4849ff6f1e098259f86f094db2bd63ca4bb81 Mon Sep 17 00:00:00 2001 From: eggy Date: Tue, 13 Apr 2021 16:34:16 -0400 Subject: [PATCH] math: fix missing bracket --- docs/mcv4u7.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/mcv4u7.md b/docs/mcv4u7.md index f5be0f8..4d8ee6a 100644 --- a/docs/mcv4u7.md +++ b/docs/mcv4u7.md @@ -289,7 +289,7 @@ $$z=\frac{x-\mu}{\sigma}$$ A **Standard Normal Table** can be used to determine the cumulative area under the standard normal curve to the left of scores -3.49 to 3.49. The area to the *right* of the score is equal to $1-z_\text{left}$. The area *between* two z-scores is the difference in between the area of the two z-scores. -To standardise a normal random variable, it should be converted from the form $X\sim N(\mu,\sigma^2$ to $Z\sim N(0,1)$ via the formula to convert between x- and z-scores. +To standardise a normal random variable, it should be converted from the form $X\sim N(\mu,\sigma^2)$ to $Z\sim N(0,1)$ via the formula to convert between x- and z-scores. The probability of a z-score being less than a value can be rewritten as phi. $$P(z