The correlation between Assists and Deaths is 0.6. The more Assists, the more Deaths, and vice versa. But some values are higher than expected, some are lower. Efficiency is a difference between the value of Deaths depending on Assists (blue dots) with respect to the expected value (red line).
Efficiency
Huskar 2.9350
Nature's Prophet 1.9040
Techies 1.8425
Lion 1.7979
Nyx Assassin 1.6795
Witch Doctor 1.5716
Shadow Shaman 1.4974
Axe 1.4886
Pudge 1.4816
Vengeful Spirit 1.3875
Broodmother 1.3517
Enigma 1.1753
Legion Commander 1.1573
Crystal Maiden 1.0261
Monkey King 1.0153
Sand King 0.9406
Lina 0.9146
Lich 0.8996
Marci 0.8937
Tusk 0.8835
Batrider 0.8665
Clinkz 0.8593
Bounty Hunter 0.8321
Beastmaster 0.7781
Bristleback 0.7425
Gyrocopter 0.7041
Shadow Fiend 0.6769
Silencer 0.6748
Phantom Assassin 0.6614
Chaos Knight 0.6552
Clockwerk 0.6375
Dazzle 0.6365
Jakiro 0.6156
Troll Warlord 0.5752
Muerta 0.5462
Venomancer 0.5424
Viper 0.5408
Ursa 0.5256
Omniknight 0.4948
Slark 0.4733
Doom 0.4452
Pugna 0.4431
Elder Titan 0.4023
Earthshaker 0.3823
Slardar 0.3599
Skywrath Mage 0.3264
Leshrac 0.2937
Winter Wyvern 0.2857
Enchantress 0.2586
Razor 0.2180
Earth Spirit 0.1992
Terrorblade 0.1714
Undying 0.1631
Rubick 0.1314
Shadow Demon 0.1308
Arc Warden 0.1081
Riki 0.1045
Ancient Apparition 0.1035
Meepo 0.0710
Necrophos 0.0178
Ogre Magi 0.0048
Bane -0.0261
Sven -0.0355
Outworld Destroyer -0.0368
Bloodseeker -0.0558
Dawnbreaker -0.0591
Dark Willow -0.0779
Windranger -0.1346
Snapfire -0.1409
Spirit Breaker -0.1517
Visage -0.1692
Phoenix -0.1863
Primal Beast -0.2147
Grimstroke -0.2276
Magnus -0.2349
Drow Ranger -0.2668
Juggernaut -0.2778
Timbersaw -0.2889
Tiny -0.3461
Underlord -0.3813
Templar Assassin -0.4059
Death Prophet -0.4179
Storm Spirit -0.4297
Mars -0.4701
Alchemist -0.4775
Sniper -0.4781
Queen of Pain -0.5172
Chen -0.5606
Treant Protector -0.5680
Centaur Warrunner -0.5792
Luna -0.6325
Night Stalker -0.6576
Disruptor -0.6731
Weaver -0.6967
Tinker -0.7042
Oracle -0.7182
Pangolier -0.7440
Puck -0.7471
Morphling -0.7553
Io -0.7698
Faceless Void -0.8060
Dragon Knight -0.8073
Ember Spirit -0.8445
Void Spirit -0.8603
Invoker -0.8732
Dark Seer -0.8870
Brewmaster -1.0101
Hoodwink -1.0409
Lone Druid -1.0795
Warlock -1.1235
Tidehunter -1.1878
Phantom Lancer -1.1999
Mirana -1.2005
Lycan -1.2136
Kunkka -1.2238
Keeper of the Light -1.2879
Spectre -1.2992
Anti-Mage -1.3048
Abaddon -1.3295
Naga Siren -1.3570
Wraith King -1.3726
Lifestealer -1.6576
Zeus -2.4220
Medusa -2.7993