Question
Asked Oct 11, 2019
479 views
  1. Suppose there are 100 students in your accounting class, 10 of whom are left-handed.

 

  1. Two students are drawn at random. Draw the probability tree and insert the probability for each branch.

What is the probability of the following events?

 

  1. Both are right-handed?
  2. Both are left-handed?
  3. One is right-handed and the other is left-handed?
  4. At least one is right-handed?
check_circle

Expert Answer

Step 1

1)The letter R represents right-handed student and L represents left-handed student. The probability tree and corresponding probabilities is given below:

help_outline

Image Transcriptionclose

89 RR 90 100 99 RL 90 100 99 10 X Selecting two students - 10 90 LR X 100 99 LL 10 X 100 99

fullscreen
Step 2

Probability of given events:

1)The probability that both student selected are right-handed is calculated as follows:

help_outline

Image Transcriptionclose

90 P(Both are right-handed) = 89 X 100 99 0.80909 0.8091

fullscreen
Step 3

2)The probability that both student selected ar...

help_outline

Image Transcriptionclose

9 P(Both are left-handed)- 10 100 99 X 0.00909 0.0091

fullscreen

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

Math

Statistics

Other

Related Statistics Q&A

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

Q: You want to obtain a sample to estimate a population proportion. Based on population proportion is a...

A: The formula for the sample size is as follows:

question_answer

Q: Suppose a simple random sample of size n 50 is obtained from a population whose size is N20,000 and ...

A: The provided information are: Population size, (N) = 20,000Sample size (n) = 50Population proportion...

question_answer

Q: Please give step by step in TI 84

A: Consider X to be the random variable, defined as transformed ratio of the return rates that follows ...

question_answer

Q: The question is based on flipping a fair coin m times, where m is determined by the roll of an n-sid...

A: We know that n=3 which means that we are dealing with a 3-sided die.M is the number of times coin is...

question_answer

Q: Hey remember Harry from last time. Well as he was working with Jack, another trainer came up to him ...

A: a.Finding the percentage of teams that can average above 730 meters in the first event:It is given t...

question_answer

Q: 9. An experimental drug is administered to 100 randomly selected individuals, with the number of ind...

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will an...

question_answer

Q: The mean undergraduate cost for tuition, fees, room, and board for four-year institutions was $26,48...

A: (a) The probability that the sample mean cost for 36 schools less than $25,000 is 0.0026 and it is o...

question_answer

Q: Chamberlain Univer... Fage 1.2. Personal Computer... Free ethical and leg... Use the normal distribu...

A: Given test scores are normally distributed with mean 600 and standard deviation of 85.With reference...

question_answer

Q: Suppose a simple random sample of size n 64 is obtained from a population with u 71 and a 16 (a) Des...

A: (a)The sampling distribution of x-bar follows normal with mean µ and the standard deviation is σ/ √n...