Question

in a test of a sex - selection technique, results consisted of 243 female babies and 203 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: Find total number of babies

To find the total number of babies, we add the number of female babies and male babies. So, total = 243 + 203 = 446.

Step2: Calculate probability of female baby

The probability of a female baby is the number of female babies divided by the total number of babies. So, probability = $\frac{243}{446} \approx 0.545$.

Answer:

0.545