[Solved] What is the term for the range of activity within which a linear cost function is valid? A)normal range B)relevant range C)activity range D)fixed range Recommended Weight: A health guideline suggesting an optimal weight range based on various factors including height, age, and gender. Turner Syndrome: Sex chromosome abnormality in which a female is born with only one X chromosome; girls with Turner syndrome show abnormal growth patterns, abnormalities in primary and secondary sex characteristics, and other disorders. Klinefelter Syndrome: A genetic condition in males resulting from an extra X chromosome, often characterized by physical, developmental, and fertility issues. Triple X Syndrome: A genetic condition found in females, characterized by the presence of an extra X chromosome, leading to a 47,XXX karyotype.