Question

in a test of a sex - selection technique, results consisted of 236 female babies and 19 male babies. based on this result, what is the probability of a female being born to a couple using this technique? does it appear that the technique is effective in increasing the likelihood that a baby will be a female? the probability that a female will be born using this technique is approximately (type an integer or decimal rounded to three decimal places as needed.)

Explanation:

Step1: Calculate total number of babies

The total number of babies is the sum of female and male babies. So, $236 + 19=255$.

Step2: Calculate probability of female - born

The probability $P$ of a female being born is the number of female babies divided by the total number of babies. So, $P=\frac{236}{255}\approx0.926$.

Answer:

$0.926$