A certain population contains equal numbers of males and females. 40% of the population has long hair. 35% of the population is female with long hair. If an individual is randomly selected from this population, the probability that the individual is female or has long hair (or both) is
A certain population contains equal numbers of males and females. 40% of the population has long...
A certain population contains equal numbers of males and females. 40% of the population has long hair. 35% of the population is female with long hair. If an individual is randomly selected from this population, the probability that the individual is female or has long hair (or both) is
In a given year, 1,986,589 males and 1,853,663 females were born in a certain country. If a child is selected randomly from this group, what is the probability that it is female? The probability is (Round to the nearest hundredth as needed.)
Let's say there are 10 females and 15 males in a research study about cardiovascular disease. If two different people from this study are randomly selected, find the probability that both are female e) person is in their 40's or PD is cardiac f) person is 60+ or PD is arthritis Let's say there are 10 females and 15 males in a research study about cardiovascular disease. If two different people from this study are randomly selected, find the probability...
In a population initially consisting of 75% females and 25% males, you are given: i. For a female, the force of mortality is constant and equals μ. ii. For a male, the force of mortality is constant and equals 1.5μ. iii. At the end of 20 years, the population consists of 85% females and 15% males. Answer the following questions, a. Derive an expression in terms of μ of the probability that a female survives 20 years. b. Calculate the...
Please show ALL steps for each part Suppose that, in a certain population, heights of males are normally distributed with mean M1 = 178cm and standard deviation 01 = 4cm while heights of females are normally dis- tributed with M2 = 170cm and 01 = 3cm. Now suppose that a random sample of 25 males and 25 females are selected from the population. a) What is the probability that the average height of the males is greater than 180cm? b)...
In a group of 45 people, 23 males and 22 females, each person has either high blood pressure, a high level of cholesterol or both. If 10 females and 10 males have high blood pressure and 15 females have high level of cholesterol, and 2 males have both, then if a person is selected randomly from this group, what is the probability that (fraction only-reduced): a) the person have both? b) the person has high blood pressure? c) the person...
In a population of fruit flies, 37.5% possess a particular trait, T. Suppose 25% of the females possess the trait, and that the population is composed of equal numbers of males and females. If a fruit fly is selected at random from the population, and it possesses the trait T, what is the probability that it is female?
Suppose a math class contains 25 students, 14 females (three of whom speak French) and 11 males (two of whom speak French). Compute the probability that a randomly selected student speaks French, given that the student is female.
7% of males and 3% of females hope to start their own business upon graduation from a certain business college. If 53% of that business college students are males. What is the probability that a randomly selected student wants to start a business? *It may help to make a tree diagram Round to two decimals.
A technology company has 70 employees, 38 males and 32 females. Assume that the manager of the company will promote 9 employees randomly this year. What is the probability that at least 2 female employees will be promoted?