Question

Eighty percent of the population is right-handed. Use Excels to generate the binomial probability Distribution for...

Eighty percent of the population is right-handed. Use Excels to generate the binomial probability

Distribution for the number of right-handers you might find in 20 randomly chosen individuals and turn in this output. Then answer the following questions.

  1. What is the most likely number of right-handers that you might find in 20 randomly chosen individuals?
  2. What is the probability of getting at most 14 right-handers in 20 randomly chosen individuals?
  3. What is the probability of getting at least 15 right-handers in 20 randomly chosen individuals?
  4. What is the mean number of right-handers you would find in 20 randomly chosen individuals?
  5. What is the standard deviation of the right-handers you would find in 20 randomly chosen individuals?
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution:

p=0.80

n=20

What is the probability of getting at most 14 right-handers in 20 randomly chosen individuals?

P(X<=14)

Excel formual

=BINOM.DIST(14;20;0.8;TRUE)

=0.195792

0.195792

What is the probability of getting at least 15 right-handers in 20 randomly chosen individuals?

P(X>=15)

=1-P(X<=14)

1-BINOM.DIST(14;20;0.8;TRUE)

=1-0.195792

=0.804208

0.804208

What is the mean number of right-handers you would find in 20 randomly chosen individuals?

Mean=np=20*0.80=16

What is the standard deviation of the right-handers you would find in 20 randomly chosen individuals?

standard deviation=sqrt(npq)]

=sqrt(20*0.80*0.20)

=1.788854

standard deviation=1.788854

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Eighty dash four percent of adults in a certain country believe that life on other planets...
Eighty dash four percent of adults in a certain country believe that life on other planets is plausible. You randomly select five adults and ask them whether they believe that life on other planets is plausible. The random variable represents the number of adults who believe that life on other planets is plausible. Find the​ mean, variance, and standard deviation of the binomial distribution for the random variable. Interpret the results. Find the mean of the binomial distribution. ​(Round to...
DIRECTIONS: For items 1a-d, use The Binomial Probability Distribution table, to determine the probability for the...
DIRECTIONS: For items 1a-d, use The Binomial Probability Distribution table, to determine the probability for the given Binomial Random Variable, X. 1A. Approximately P = 0.50 of all Americans save quarters that are minted and distributed from the Statehood Commemorative Quarter Collection. Suppose n =2 0 Americans are randomly selected. Find the probability that x =10 Americans collect state quarters (1 pt) B. A Six Flags Great Adventure Theme Park now offers a wild safari drive-thru with over hundreds of...
Binomial Distribution: 12:17 Notes: the binomial distribution is a discrete probability distribution the parameters of binomial...
Binomial Distribution: 12:17 Notes: the binomial distribution is a discrete probability distribution the parameters of binomial distribution are p (probability of success in a single trial) and n (number of trials) the mean of binomial distribution is np the standard deviation of binomial distribution is sqrt(npq) q=1-p 1. In the production of bearings, it is found out that 3% of them are defective. In a randomly collected sample of 10 bearings, what is the probability of Given: p = 0.03,...
1. For a binomial distribution, if the probability of success is 0.621 on the first trial,...
1. For a binomial distribution, if the probability of success is 0.621 on the first trial, what is the probability of success on the second trial? 2.A company purchases shipments of machine components and uses this acceptance sampling plan: Randomly select and test 32 components and accept the whole batch if there are fewer than 5 defectives.If a particular shipment of thousands of components actually has a 5.5% rate of defects, what is the probability that this whole shipment will...
Activity 1 Answer the following questions. You are allowed to use online calculators such as Stat...
Activity 1 Answer the following questions. You are allowed to use online calculators such as Stat Trek Binomial, Poisson, ect calculators, just make sure to note the values you entered in your answer. I would prefer if the calculator was used but show any work to solve the problem as well. In the general population, about 10% of people are left-handed. a) Suppose I randomly pick 200 people. What proportion of the time will I find fewer than 14 people...
Find the indicated probabilities using the geometric​ distribution, the Poisson​ distribution, or the binomial distribution. Then...
Find the indicated probabilities using the geometric​ distribution, the Poisson​ distribution, or the binomial distribution. Then determine if the events are unusual. If​ convenient, use the appropriate probability table or technology to find the probabilities. Fifty dash two percent of adults say that they have cheated on a test or exam before. You randomly select six adults. Find the probability that the number of adults who say that they have cheated on a test or exam before is​ (a) exactly...
For this question, use a Binomial Probability Distribution. Assume all conditions are met. According to data...
For this question, use a Binomial Probability Distribution. Assume all conditions are met. According to data from the U.S. Social Survey, the probability that an adult was never in a museum is 15%. You may safely assume that one randomly selected adult having never been in a museum does not change the chances of another adult having never been in a museum. (a) If 10 adults are randomly surveyed, what is the probability that 6 of them have never been...
use the following information using 20 questions OF TRUE OR FALSE CHOICES instead of 35 MULTIPLICATION...
use the following information using 20 questions OF TRUE OR FALSE CHOICES instead of 35 MULTIPLICATION WITH 5 POSSIBLE CHOICES Background: You are taking a standardized test with 35 questions. For each question you are given the choice of 5 possible answers A, B, C, D and E. You answer each question randomly. What is the probability that you pass the test by answering at least 70 % of the 30 questions correctly? Answer the following questions. 1) Is this...
Use the following information using 20 questions instead of 35 Background: You are taking a standardized...
Use the following information using 20 questions instead of 35 Background: You are taking a standardized test with 35 questions. For each question you are given the choice of 5 possible answers A, B, C, D and E. You answer each question randomly. What is the probability that you pass the test by answering at least 70 % of the 30 questions correctly? Answer the following questions. 1) Is this a binomial experiment?           Circle one YES                         NO    Check/Explain the...
Ch 5 Statistics Binomial Probability/Poisson Probability For full credit, show your work step by step and...
Ch 5 Statistics Binomial Probability/Poisson Probability For full credit, show your work step by step and circle your final answer. Then Upload in Blackboard (you can do just one time) (Round the final answer to 4 decimal digits) 2. The lengths of pregnancies are normally distributed with a mean of 273 days and a standard deviation of 20 days. If 50 women are randomly selected, find the probability that they have a mean pregnancy between 273 days and 275 days....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT