Question
Please show work and explain steps. Thank you. 1. The average weight of 6 people in an elevator is 173 pounds. A 7 th person
Please show work and explain steps. Thank you.
1. The average weight of 6 people in an elevator is 173 pounds. A 7th person gets on and now the average weight is 165 pounds. How much did the 7th person weight?
2. Use the following data obtained from ages of the last six U. S. Presidents at the time of their inauguration to answer the following questions:
Ages of Last 6 Presidents at Inauguration | |
George Bush | 64 |
Bill Clinton | 46 |
George W. Bush | 54 |
Barack Obama | 47 |
Donald Trump | 70 |
Joe Biden | 78 |
a. Find the mean of the data set. (Round to one decimal place.)
b. Find the standard deviation of the data set. (Do not round until the final answer. Round final answer to 1 decimal place.) Write problem without using the standard deviation capabilities of a calculator. Explanation is only an explanation of the process in English sentences, not reasoning for this part.
c. What percentage of presidents' ages fall within one standard deviation of the mean? (Round to 1 decimal place.)
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started