Asked Mar 6, 2019

At a party, there are 32 men, 16 of whom are without dates, and 28 women, 12 of whom are without dates. Find the probability of picking someone at random and getting a person who is a women or without a date?


Expert Answer

Step 1

Addition rule of probability:

Addition rule of probability indicates the happening either of the events that are involved.

Consider two events A and B, the happening of either of the events A or B is obtained as follows:

Step 2

Obtain the probability of getting a person who is a women or without date.

Denote the event “a randomly selected person is women” as A.

Denote the event “a randomly selected person is without date” as B.

It is given that the total number of women is n(A) = 28.

The total number of persons without date is n(B) = 16 + 12 = 28.

The number of...


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Suppose x has a distribution with μ = 60 and σ = 17. (a) If random samples of size n = 16 are select...

A: Note:Hi there! Thank you for posting the question. The Part (b) of your question asks about the “x d...


Q: What does it mean when two variables are described as “positively correlated”?

A: In statistical analysis to measure the relation between two bivariate data, then if the change of a ...


Q: 14. The number of school related extracurricular activites per student are given below: X.          ...

A: a)As the sum of the probabilities in the probability distribution table is 1, the value of P(x=3) ca...


Q: Age 18-23 24-29 30-35 36-41 42-47 48-53   Male 2 2 3 1 2 1 11 Female 5 3 4 3 1 3 19   7 5 7 4 ...

A: Given data of male and female people with in the mentioned age groups as shown below.The total numbe...


Q: Deborah wants to estimate the percentage of people who eat fast food at least once per week. She wan...

A: Margin of error is usually computed using the formula below.  In this question, Margin of error is k...


Q: 9.3 Question is in the attached picture.

A: a. Identifying whether the linear combination are contrast:Contrast:A contrast is linear combination...


Q: High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. Afte...

A: The proportion of tagged trout in the lake is, p = 700/2000 = 0.35Let X be the number of tagged trou...


Q: what would be the mean and standard deviation of each chart!! I am having trouble calculating this. ...

A: Calculation: Mean:Before mean:Control: (5 + 1 + 2)/3 = 2.67. [(Before Stephanie + Before Brenda + Be...


Q: In a survey of 4061 ​adults, 738 say they have seen a ghost. Construct a​ 99% confidence interval fo...

A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have ...