What is the probability of randomly selecting a woman who had a low weight baby given that she had visited the doctor in the first trimester? 2. What is the probability of randomly selecting a woman who had a low weight baby given that she had not visited the doctor in the first trimester? 3. Using the probabilities that you have computed in (1) and (2) to answer the question, "Does visiting the doctor in the first trimester increase or decrease your risk of having a baby with a low birth weight?"
Contingency Table
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.
A medical study looked at the factors that impact birth weight. The variable Visit Doctor indicated whether a woman visited a physician during the first trimester of her pregnancy. The variable Low Weight indicated whether a baby was born weighing under 2500 grams. Assuming that this sample is representative, answer the following
| Low Weight | ||||
| Visit Doctor | No | Yes | Total | |
| No | 64 | 36 | 100 | |
| Yes | 66 | 23 | 89 | |
| Total | 130 | 59 |
189 |
1. What is the probability of randomly selecting a woman who had a low weight baby given that she had visited the doctor in the first trimester?
2. What is the probability of randomly selecting a woman who had a low weight baby given that she had not visited the doctor in the first trimester?
3. Using the probabilities that you have computed in (1) and (2) to answer the question, "Does visiting the doctor in the first trimester increase or decrease your risk of having a baby with a low birth weight?"
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