They all of hills and slopes rocky under grounds
Answer:Cronbach's alpha
Explanation:
Cronbach's alpha is used to measure consistency interms of how closely associated items in a group are.
It measures the scale of reliability as a coefficient of reliability not statistically.
below is a formula that is used to calculate this reliability.
α=N¯c/¯v+(N−1)¯c
Here N equate to the number of items, ¯c is the average inter-item covariance among the items and ¯v equals the average variance.
The increase number of items will increase Cronbanch's Alpha.
Additionally, if the average inter-item correlation is low, alpha will be low.
D.) Abolishing other religions.
The statement from the ones you've listed that probably best explains the failure of democratic European governments and nations following World War I is
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The governments were unable to solve serious economic problems in these nation.
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This lead to further consequences which partially also resulted in the next world war.