Search
Responsive Menu
Statistics How To
Statistics for the rest of us!
Statistics How To
Statistics Symbols in Alphabetical Order
Statistics Basics > Statistics Symbols in Alphabetical Order
Probability and Statistics Symbols
I’ve put these statistics symbols into quasi-alphabetical order, so that they are easy to find. When I say
quasi-alphabetical, I mean that I have ordered them according to what they look like. For example, the
Greek letter Beta (β) looks like the letter b, so you’ll find it in the b section. Same for the letter mu(μ),
which looks like the letter u.cIf a statistics symbol doesn’t look like a letter, for example the “Greater
than” symbol, >, you’ll find it at the very bottom under “miscellaneous.” Most items are clickable, taking
you to an article that explains the statistics symbols in more depth.
Statistics Symbols A to Z
statistics symbols
α: significance level (type I error).
b or b0: y intercept.
b1: slope of a line (used in regression).
β: probability of a Type II error.
1-β: statistical power.
BD or BPD: binomial distribution.
CI: confidence interval.
CLT: Central Limit Theorem.
d: difference between paired data.
df: degrees of freedom.
DPD: discrete probability distribution.
E = margin of error.
f = frequency (i.e. how often something happens).
f/n = relative frequency.
HT = hypothesis test.
Ho = null hypothesis.
H1 or Ha: alternative hypothesis.
IQR = interquartile range.
m = slope of a line.
M: median.
n: sample size or number of trials in a binomial experiment.
N: population size.
ND: normal distribution.
σ: standard deviation.
σxx: standard error of the mean.
σpp : standard error of the proportion.
p: p-value, or probability of success in a binomial experiment, or population proportion.
ρ: correlation coefficient for a population.
pp : sample proportion.
P(A): probability of event A.
P(AC) or P(not A): the probability that A doesn’t happen.
P(B|A): the probability that event B occurs, given that event A occurs.
Pk: kth percentile. For example, P90 = 90th percentile.
q: probability of failure in a binomial or geometric distribution.
Q1: first quartile.
Q3: third quartile.
r: correlation coefficient of a sample.
R2: coefficient of determination.
s: standard deviation of a sample.
s.d or SD: standard deviation.
SEM: standard error of the mean.
SEP: standard error of the proportion.
t: t-score.
μ mean.
ν: degrees of freedom.
X: a variable.
Χ2: chi-square.
x: one data value.
xx: mean of a sample.
z: z-score.
Miscellaneous Statistics Symbols
~ has the distribution of (source).
= equal to.
≈ almost equal to.
> greater than.
< less than.
≠ not equal to.
≤ less than or equal to.
≥ greater than or equal to.
Σ Summation.
------------------------------------------------------------------------------
Need help with a homework or test question? With Chegg Study, you can get step-by-step solutions to
your questions from an expert in the field. Your first 30 minutes with a Chegg tutor is free!
Statistical concepts explained visually - Includes many concepts such as sample size, hypothesis tests, or
logistic regression, explained by Stephanie Glen, founder of StatisticsHowTo.
Comments? Need to post a correction? Please post a comment on our Facebook page.
Check out our updated Privacy policy and Cookie Policy
By Stephanie | May 4, 2015 | Statistics How To |
← Geometric Distribution: Definition & ExampleWithin-Group Variation: Definition and Examples →
Find an article
Search
Search
Feel like "cheating" at Statistics? Check out the grade-increasing book that's recommended reading at
top universities!
Need help NOW with a homework problem? Click here!
Copyright ©2020 Statistics How To | Theme by: Theme Horse | Powered by: WordPress
We encourage you to view our updated policy on cookies and affiliates. Find out more.
Okay, thanks
