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ˌheterosceˈdastic
ˌheterosceˈdastic adj. 
/ˌhɛdərəskᵻˈdæstɪk/ [Greek σκεδαστός capable of being scattered (σκεδάννυμι I scatter)] Statistics of unequal scatter or variation; having different variances.
Brit. /ˌhɛt(ə)rə(ʊ)skɪˈdastɪk/
, /ˌhɛt(ə)rə(ʊ)skɪˈdastɪk/U.S. /ˌhɛdəroʊskᵻˈdæstɪk/
, /ˌhɛdəroʊskᵻˈdæstɪk//ˌhɛdərəskᵻˈdæstɪk/ΘΚΠ
the world > relative properties > number > probability or statistics > [adjective] > relating to distribution > relating to variance
heteroscedastic1905
homoscedastic1905
1905 K. Pearson in Drapers' Company Res. Mem. (Biometric Ser.) 2 22 If..all arrays are equally scattered about their means, I shall speak of the system as a homoscedastic system, otherwise it is a heteroscedastic system.
1937 G. U. Yule & M. C. Kendall Introd. Theory Statistics (ed. 11) xi. 214 Arrays in which the standard deviations are equal are sometimes said to be ‘homoscedastic’; in the contrary case ‘heteroscedastic’.
1965 M. G. Bulmer Princ. Statistics xii. 215 The variance of Y may not be constant but may depend on x; the regression is then said to be heteroscedastic.
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