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Conditions necessary for a chi-squared goodness of fit include which of the following?

I. Two independent SRSs.
II. Expected counts must all be greater than $5$.
III. np and n(1-p) must both be at least $10$

A

II only.

B

III only.

C

I and II only.

D

II and III only.

E

I, II, and III.

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