Question

in a test of a sex-selection technique, results consisted of 265 female babies and 11 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

Total babies = female babies + male babies = \( 265 + 11 = 276 \)

Step2: Calculate probability of female

Probability = \( \frac{\text{Number of female babies}}{\text{Total number of babies}} = \frac{265}{276} \approx 0.959 \)

Answer:

0.959