ZuoTi.Pro
Question

, Question 3 Not yet answered Points out of 4.00 Flag question compute the standard deviation σ or ages of British nurses in 1851 Assume that the table below shows the age distribution of nurses in Great Britain in 1851 your answer to nearest hundredth. Round ge range (yr) 20-29 0-69 70-79 75.5 9.0% dpoint (n) 64.5 of nures 8% 8% 9.6% 1% 9% 8% Select one: a. 3.27 b. 13.69 C. 53.76 d. 17.25 е. 1.53
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1
x P(x) xP(x) x2P(x)
24.5 0.058 1.421 34.815
34.5 0.098 3.381 116.645
44.5 0.196 8.722 388.129
54.5 0.291 15.860 864.343
64.5 0.249 16.061 1035.902
74.5 0.09 6.705 499.523
84.5 0.018 1.521 128.525
total 53.670 3067.880
E(x) =μ= ΣxP(x) = 53.6700
E(x2) = Σx2P(x) = 3067.8800
Var(x)=σ2 = E(x2)-(E(x))2= 187.411
std deviation=         σ= √σ2 = 13.69

option b is correct

0 0
Add a comment
Know the answer?
Add Answer to:
, Question 3 Not yet answered Points out of 4.00 Flag question compute the standard deviation...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Compute the standard deviation σ for ages of British nurses in 1851. Assume that the table...

    Compute the standard deviation σ for ages of British nurses in 1851. Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Round your answer to nearest hundredth. ​ Age range (yr) 20–29 30–39 40–49 50–59 60–69 70–79 80+ Midpoint (x) 24.5 34.5 44.5 54.5 64.5 75.5 84.5 Percent of nurses 5.8% 9.7% 19.4% 29.1% 24.9% 9.0% 2.1%

  • 1/ Compute the standard deviation for ages of British nurses in 1851. Assume that the table...

    1/ Compute the standard deviation for ages of British nurses in 1851. Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Round your answer to nearest hundredth. Age range (yr) 20-29 30-39 40-49 50-59 60-69 70-79 80+ Midpoint (x) 24.5 34.5 44.5 54.5 64.5 75.5 84.5 Percent of nurses 5.8% 9.8% 19.6% 29.1% 24.9% 9.0% 1.8% Select one: a. 53.76 b. 17.25 c. 1.53 d. 3.27 e. 13.69 2. Richard has been given...

  • What was the age distribution of nurses in Great Britain at the time of Florence Nightingale?...

    What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Suppose we have the following information. Note: In 1851 there were 25,466 nurses in Great Britain. Age range (yr) 20-29 30-39 40-49 50-59 60-69 70-79 80+ Midpoint x 24.5 34.5 44.5 54.5 64.5 74.5 84.5 Percent of nurses 5.4% 9.2% 19.6% 29.5% 24.9% 9.6% 1.8% (e) Compute the standard deviation σ for ages of nurses shown in the distribution. (Round your answer to two...

  • What was the age distribution of nurses in Great Britain at the time of Florence Nightingale?...

    What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Thanks to Florence Nightingale and the British census of 1851, we have the following information (based on data from classic text Notes on Nursing, by Florence Nightingale). Note: In 1851 there were 25,466 nurses in Great Britain. Furthermore, Nightingale made a strict distinction between nurses and domestic servants. Find the probability that a British nurse selected at random in 1851 would be 70 years...

  • What was the age distribution of nurses in Great Britain at the time of Florence Nightingale?...

    What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Suppose we have the following information. Note: In 1851 there were 25,466 nurses in Great Britain. Age range (yr) 20-29 30-39 40-49 50-59 60-69 70-79 80+ Midpoint x 24.5 34.5 44.5 54.5 64.5 74.5 84.5 Percent of nurses 5.2% 9.3% 19.2% 29.1% 24.7% 10.7% 1.8% 1. Find the probability that a British nurse selected at random in 1851 would be 60 years of age...

  • Unable to figure out part e. Not really sure how I miscalculated. Please help. What was...

    Unable to figure out part e. Not really sure how I miscalculated. Please help. What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Suppose we have the following information. Note: In 1851 there were 25.466 nurses in Great Britain. Age range (yr) 20-29 30-39 40-49 50-59 60-69 70-79 80+ Midpoint 24.5 34.5 44.5 54.5 64. 5 74. 5 84.5 Percent of nurses 5.1% 9.4% 19.8% 29.7% 24.8% 9,4% 1.8% the 200 midnintry and...

  • Question 13 Not yet answered Points out of 4.00 Flag question Suppose that on the leeward...

    Question 13 Not yet answered Points out of 4.00 Flag question Suppose that on the leeward side ofthe island of Oahu, in the small village of Nanakuli, about 40% of the residents are of Hawanan ancestry. Let 1 2 3 represent the number of people you must meet until you encounter the first person of Hawaiian ancestry in the village of Nanakuli. The formula for the probability distribution of the random variable n is given as Pn)-(0.40xo.60)-1 What is the...

  • Question 6 Not yet answered Points out of 4.00 P Flag question Diagnostic tests of medical...

    Question 6 Not yet answered Points out of 4.00 P Flag question Diagnostic tests of medical conditions have several results. The rest result can be positive or negative. A positive test (+) indicates the patient has the condition. A negative test () indicates the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 137 patients, some of whom have a...

  • Question 4 Not yet answered Points out of 4.00 Flag question A person's level of blood...

    Question 4 Not yet answered Points out of 4.00 Flag question A person's level of blood glucose and diabetes are closely related. Let r be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will ave a distribution that is approximately normal with mean 90 standard deviation ofơ-21 What is the probability that, for an adult after a 12-hour fast, x is less...

  • Question 7 Not yet answered Points out of 0.33 Remove flag The examination for registered nurse...

    Question 7 Not yet answered Points out of 0.33 Remove flag The examination for registered nurse (RN) licensure is exactly the same in every state in the United States. This examination: Select one: O a. Guarantees safe nursing care for all patients O b. Ensures that honest and ethical care is provided O c Ensures standard nursing care for all patients d. Provides a minimal standard of knowledge for an RN in practice Question 8 Not yet answered Points out...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT