Choose the appropriate term for each definition below.

• -Standard normal variable Probability density curve Normal probability curve with parameters μ and σ Normal approximation Correction for continuity  a continuous random variable that has the standard normal probability density curve.
• -Standard normal variable Probability density curve Normal probability curve with parameters μ and σ Normal approximation Correction for continuity  a curve that (1) is always on or above the horizontal axis; (2) has the total area between itself and the horizontal axis equal to 1.
• -Standard normal variable Probability density curve Normal probability curve with parameters μ and σ Normal approximation Correction for continuity  a bell-shaped probability density curve that (1) has the peak at μ; (2) symmetric about μ; (3) extends indefinitely in both directions, approaching but never touching the horizontal axis; (4) empirical rule holds.
• -Standard normal variable Probability density curve Normal probability curve with parameters μ and σ Normal approximation Correction for continuity  a technique used to approximate the probabilities of a binomial random variable using the normal random variable with the same parameters
• -Standard normal variable Probability density curve Normal probability curve with parameters μ and σ Normal approximation Correction for continuity  an adjustment made in the binomial approximation to account for the missing probabilities at the end of range