Answer
Both Biological or Adoptive Parents and No.
The expected frequency was less than the observed frequency.
The presence of both biological or adoptive parents decreases the chances of a female between the ages of 15 and 19 years of age having sexual intercourse.
Work Step by Step
The second row with the first column: Both Biological or Adoptive Parents and No.
Expected frequency: 71.45, observed frequency: 86
