The Proportion of the Area Under a Normal Curve That

question 78

Short Answer

The proportion of the area under a normal curve that is to the left of z = 1.40 is _______.

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Definitions:

IQ Scores

A measure of a person's cognitive abilities and potential, commonly expressed as a score derived from standardized tests designed to assess human intelligence.

Percentage

A mathematical term describing a number or ratio expressed as a fraction of 100.

Standardized Tests

Tests that are administered and scored in a consistent, or "standard," manner and are designed to measure students' comparative performance.

Normal Curve

A bell-shaped curve that represents the distribution of many types of data where most values cluster around a central region, with values tapering off as they move away from the center.