Z Is a Standard Normal Random Variable $\leq$ Z $\leq$ 185) Equals
A) 0

question 97

Multiple Choice

z is a standard normal random variable.The P (1.20 $\leq$ z $\leq$ 1.85) equals

• A) 0.4678
• B) 0.3849
• C) 0.8527
• D) 0.0829

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Definitions:

Standard Deviation

An analysis method to quantify the level of scattering or variability among a set of measures.

Standard Normal Distribution

A normal distribution with a mean of zero and a standard deviation of one, used in statistical analyses.

Probability

A statistical metric that indicates the extent of the chance of an event taking place, expressed within the range from 0 (no chance) to 1 (absolute certainty).

Binomial Probability Experiment

An experiment or process that has exactly two possible outcomes (success or failure) for each trial and where the probability of success is the same for each trial.