Explain Why the Two Probabilities Are Identical for the Standard $\operatorname { Pr } ( - 1.96 \leq X \leq 1.96 ) \text { and } \operatorname { Pr } ( - 1.96 < X < 1.96 )$

question 40

Essay

Explain why the two probabilities are identical for the standard normal distribution:
$\operatorname { Pr } ( - 1.96 \leq X \leq 1.96 ) \text { and } \operatorname { Pr } ( - 1.96 < X < 1.96 )$

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Definitions:

Months

Units of time, each roughly corresponding to one cycle of the moon’s phases, used in planning and scheduling.

Accrued Interest

Interest that has accumulated over time but has not yet been paid.

Loan

An amount of money borrowed that is expected to be paid back with interest.

Days

Units of time representing 24 hours, used universally to measure time periods shorter than a week.