Historical clue formulations

• One of three statistical averages — 2026-05-05
• 8 vis-à-vis 7 and 9 — 2025-07-04
• Excellent, average or bad, depending on the context — 2025-03-22
• Suggest — 2025-02-21
• Statistics calculation — 2024-12-13
• Uncharitable — 2024-11-24
• Word after golden or before Girls — 2024-07-03
• Average — 2024-05-03
• 5, for the set [2, 4, 6, 8] — 2023-01-23
• Signify — 2022-09-19
• Far from friendly — 2022-06-12
• Something to regress to — 2021-12-01
• Signify — 2021-07-06
• Average — 2021-07-02
• Statistician's calculation — 2020-11-01
• Word before streak or business — 2019-12-29
• "See what I ___?" — 2019-10-14
• Not nice — 2019-03-06
• Dirty, as tricks — 2018-07-04
• Unkind — 2017-10-16
• Signify — 2017-08-21
• Intend — 2017-05-30
• Not nice — 2016-06-27
• Average — 2016-04-17
• Vicious — 2015-12-14
• Downright nasty — 2015-09-28
• Statistics class figure — 2015-05-08
• Signify — 2015-03-03
• Nasty — 2015-03-02
• Have in mind — 2014-08-24
• *Standard deviation deviates from it — 2014-02-18
• Be defined as — 2013-12-02
• Represent — 2013-10-18
• Skillful, slangily — 2013-08-17
• Cussed — 2013-07-07
• Nasty — 2013-04-15
• Stand for — 2012-09-19
• With 35-Down, have no malice — 2012-04-13
• Like a bully — 2011-07-18
• Stand for — 2011-05-10
• Black-hearted — 2011-03-28
• Uncharitable — 2011-01-09
• Stingy — 2010-01-20
• Like taking candy from a baby? — 2009-12-14
• Intend — 2009-05-26
• Have as a definition — 2008-08-25
• Signify — 2007-10-03
• Nasty — 2007-02-19
• Average — 2006-12-04
• Cruel — 2006-06-26