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
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Let's say there are 10 females and 15 males in a
research study about cardiovascular disease....
12. (12 pts) The data in the following table represent the marital status of males and...
12. (12 pts) The data in the following table represent the marital status of males and females 18 years old or older in the United States in 2003. Males (in millions) Females (in millions) Totals (in millions) Never Married 28.6 23.3 51.9 Married 62.1 124.9 Widowed 2.7 11.3 Divorced 9.0 12.7 21.7 Totals (in millions) 110.1 a) Complete the table. b) Find the odds that a randomly selected person is a female. c) Determine the probability that a randomly selected...
In a group of 45 people, 23 males and 22 females, each person has either high...
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...
(1 point) Rework problem 22 from section 2.4 of your text, involving the assignment of tasks to student union board members. Assume that there are 16 board members: 12 females, and 4 males including...
(1 point) Rework problem 22 from section 2.4 of your text, involving the assignment of tasks to student union board members. Assume that there are 16 board members: 12 females, and 4 males including Carl. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment. (1) Find the probability that both males and females are given a task. (2) Find the probability that Carl and at least one female are given...
Assume 11 males audition, one of them being Winston, 5 females audition, one of them being...
Assume 11 males audition, one of them being Winston, 5 females audition, one of them being Margaret, and 4 children audition. The casting director has 3 male roles available, 1 female role available, and 2 child roles available. How many different ways can these roles be filled if exactly one of Winston and Margaret gets a part? What is the probability (if the roles are filled at random) of both Winston and Margaret getting a part?
A researcher at a large university wanted to investigate if a student's seat preference was related...
A researcher at a large university wanted to investigate if a
student's seat preference was related in any way to the gender of
the student. The researcher divided the lecture room into three
sections (1-front, middle of the room, 2-front, sides of the
classroom, and 3-back of the classroom, both middle and sides) and
noted where his students sat on a particular day of the class. The
researcher's summary table is provided below.
(a) A person is randomly selected. Find...
The demand for walnut pastries at Joanne’s Bakery on Saturday mornings is N(30, 8). Joanne currently...
The demand for walnut pastries at Joanne’s Bakery on Saturday
mornings is N(30, 8). Joanne currently makes 36 walnut
pastries for Saturday mornings. If four Saturday mornings are
randomly selected, what is the probability that Joanne will have
run out of walnut pastries on every one of the Saturdays?
A) 0.0026
B) 0.2266
C) 0.9064
D) 0.0668
A market research study about brand preference for a particular product among males and females revealed the following: 70% of consumers of this...
(1 point) Rework problem 22 from section 2.4 of your text, involving the assignment of tasks...
(1 point) Rework problem 22 from section 2.4 of your text, involving the assignment of tasks to student union board members. Assume that there are 16 board members: 12 females, and 4 males including Carl. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment. (1) Find the probability that both males and females are given a task. (2) Find the probability that Carl and at least one female are given...
a. What is the probability that a randomly selected? person's gender is? female? ?(Type an integer...
a. What is the probability that a randomly
selected? person's gender is? female?
?(Type an integer or a decimal. Round to three decimal places
as? needed.)
b. What is the probability that a randomly
selected person feels tense or stressed out at work and is?
female?
?(Type an integer or a decimal. Round to three decimal places
as? needed.)
c. What is the probability that a randomly
selected person feels tense or stressed out at work or is?
female?
?(Type...
According to a study done by UCB students, the height for Martian adult males is normally...
According to a study done by UCB students, the height for Martian adult males is normally distributed with an average of 67 inches and a standard deviation of 2.3 inches. Suppose one Martian adult male is randomly chosen. Let X = height of the individual. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that the person is between 62.1 and 65.3 inches. c. The middle...
According to a study done by UCB students, the height for Martian adult males is normally...
According to a study done by UCB students, the height for Martian adult males is normally distributed with an average of 68 inches and a standard deviation of 2.5 inches. Suppose one Martian adult male is randomly chosen. Let X = height of the individual. Round all answers to 3 decimal places where possible. a. What is the distribution of X? X ~ N(_____ , _____) b. Find the probability that the person is between 67.7 and 70.3 inches. _____...
(1 point) Rework problem 22 from section 2.4 of your text, involving the assignment of tasks to student union board members. Assume that there are 16 board members: 12 females, and 4 males including Carl. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment. (1) Find the probability that both males and females are given a task. (2) Find the probability that Carl and at least one female are given...
A researcher at a large university wanted to investigate if a
student's seat preference was related in any way to the gender of
the student. The researcher divided the lecture room into three
sections (1-front, middle of the room, 2-front, sides of the
classroom, and 3-back of the classroom, both middle and sides) and
noted where his students sat on a particular day of the class. The
researcher's summary table is provided below.
(a) A person is randomly selected. Find...
The demand for walnut pastries at Joanne’s Bakery on Saturday
mornings is N(30, 8). Joanne currently makes 36 walnut
pastries for Saturday mornings. If four Saturday mornings are
randomly selected, what is the probability that Joanne will have
run out of walnut pastries on every one of the Saturdays?
A) 0.0026
B) 0.2266
C) 0.9064
D) 0.0668
A market research study about brand preference for a particular product among males and females revealed the following: 70% of consumers of this...
(1 point) Rework problem 22 from section 2.4 of your text, involving the assignment of tasks to student union board members. Assume that there are 16 board members: 12 females, and 4 males including Carl. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment. (1) Find the probability that both males and females are given a task. (2) Find the probability that Carl and at least one female are given...
a. What is the probability that a randomly
selected? person's gender is? female?
?(Type an integer or a decimal. Round to three decimal places
as? needed.)
b. What is the probability that a randomly
selected person feels tense or stressed out at work and is?
female?
?(Type an integer or a decimal. Round to three decimal places
as? needed.)
c. What is the probability that a randomly
selected person feels tense or stressed out at work or is?
female?
?(Type...
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