In a certain city, 1% of the population has a rare disease….

In a certain city, 1% of the population has a rare disease. A medical test for the disease is 99% accurate for both true positives and true negatives. That is:- If a person has the disease, the test will be positive 99% of the time.- If a person does not have the disease, the test will be negative 99% of the time.A randomly selected person from the city tests positive. What is the probability that this person actually has the disease?

(2 points) During a community health survey, a researcher or…

(2 points) During a community health survey, a researcher organizes participant ages into intervals and calculates both cumulative frequency and cumulative relative frequency. What is the key benefit of using cumulative relative frequency over just cumulative frequency?

(2 points) A biologist records the growth rates (in cm/day)…

(2 points) A biologist records the growth rates (in cm/day) of a plant species under three different conditions: 2, 4, and 8 cm/day. Which measure of central tendency is most appropriate to report the average growth rate when the rates are multiplicative (i.e., the conditions compound the effect)?