A gender-selection technique is designed to increase the likelihood that a baby will be a girl. In the results of the gender-selection technique, 847 births consisted of 442 baby girls and 405 baby boys. In analyzing these results, assume t and girls are equally likely. a. Find the probability of getting exactly 442 girls in 847 births. b. Find the probability of getting 442 or more girls in 847 births. If boys and girls are equally likely, is 442 girls in 847 births unusually high? c. Which probability is relevant for trying to determine whether the technique is effective: the result from part (a) or the result from part (b)? d. Based on the results, does it appear that the gender-selection technique is effective? a. The probability of getting exactly 442 girls in 847 births is (Round to four decimal places as needed.)

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A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.