Using the age midpoints x and the percentage of nurses, do we have a valid probability distribution? Explain Use a histogram to graph the probability distribution of part (a). Compute the expected age (mean) of a nurse. Compute the standard deviation for ages of nurses. What is the probability that a British nurse selected at random was younger than 60?
Using the age midpoints x and the percentage of nurses, do we have a valid probability distribution? Explain Use a histogram to graph the probability distribution of part (a). Compute the expected age (mean) of a nurse. Compute the standard deviation for ages of nurses. What is the probability that a British nurse selected at random was younger than 60?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
Related questions
Topic Video
Question
- What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? We have the following data from Florence Nightingale’s writing
Age |
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 |
Percantage of Nurses |
5.7% |
9.7% |
19.5% |
29.2% |
25.0% |
9.1% |
1.8% |
- Using the age midpoints x and the percentage of nurses, do we have a valid
probability distribution? Explain - Use a histogram to graph the probability distribution of part (a).
- Compute the expected age (mean) of a nurse.
- Compute the standard deviation for ages of nurses.
- What is the probability that a British nurse selected at random was younger than 60?
Expert Solution
Working
x | p(x) | xp(x) | (x-xbar)^2 | (x-xbar)^2p(x) |
24.5 | 0.057 | 1.3965 | 856.1476 | 48.80041 |
34.5 | 0.097 | 3.3465 | 370.9476 | 35.98192 |
44.5 | 0.195 | 8.6775 | 85.7476 | 16.72078 |
54.5 | 0.292 | 15.914 | 0.5476 | 0.159899 |
64.5 | 0.25 | 16.125 | 115.3476 | 28.8369 |
74.5 | 0.091 | 6.7795 | 430.1476 | 39.14343 |
84.5 | 0.018 | 1.521 | 944.9476 | 17.00906 |
53.76 | 186.6524 |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 9 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt