Question

in a test of a sex - selection technique, results consisted of 225 female babies and 14 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.)
does the technique appear effective in improving the likelihood of having a female baby?
yes
no

Explanation:

Step1: Calculate total number of babies

Total number of babies = 225 + 14 = 239

Step2: Calculate probability of female birth

Probability of female birth = $\frac{225}{239}\approx0.941$

Step3: Analyze effectiveness

Since the probability of having a female baby is much higher than the natural - expected probability (around 0.5), the technique appears effective.

Answer:

The probability that a female will be born using this technique is approximately 0.941.
Yes