The Sample Correlation Coefficient R Equals -1 If and Only $\left( x _ { i } , y _ { i } \right)$

question 101

Short Answer

The sample correlation coefficient r equals -1 if and only if all $\left( x _ { i } , y _ { i } \right)$ pairs lie on a straight line with __________ slope.

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Definitions:

Nocturia

The need to wake up during the night in order to urinate, disrupting sleep.

Polyuria

a condition characterized by the production of abnormally large volumes of dilute urine, often a symptom of various medical conditions.

Oliguria

The medical term for producing abnormally small amounts of urine.

Dysuria

Painful or difficult urination, often indicating a urinary tract infection.