Which of the following statements is equivalent to cap p times open paren z is greater than or equal to 1 point 7 close paren ?

For a standard normal variable, symmetry gives P(Z ≥ 1.7) = P(Z ≤ −1.7). The complement of P(Z ≥ −1.7) is P(Z < −1.7), which is the same as P(Z ≤ −1.7) for a continuous distribution. So the equivalent statement is choice B: 1 − P(Z ≥ −1.7).

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