Asked by
Elissa McKinnon
on Oct 13, 2024
Verified
Suppose that in one town adult men have a mean weight of 77 kg with a standard deviation of 7 kg.Adult women have a mean weight of 63 kg with a standard deviation of 5 kg.10 year old children have a mean weight of 41 kg with a standard deviation of 3 kg.Suppose that a man,a woman,and a 10-year old child get into an elevator.What are the mean and standard deviation of their total weight?
A) μ = 107 kg,σ = 9.11 kg
B) μ = 181 kg,σ = 15 kg
C) μ = 181 kg,σ = 9.11 kg
D) μ = 107 kg,σ = 15 kg
E) μ = 181 kg,σ = 7.33 kg
Standard Deviation
A measure of the amount of variation or dispersion in a set of values, indicating how much the values differ from the mean of the set.
Mean Weight
the average weight calculated by adding all individual weights and dividing by the number of weights.
Adult Men
Adult men refers to males who have reached the legal age of maturity, which varies by country but is often considered to be 18 years or older.
- Absorb the key ideas of mean and standard deviation relevant to probability and statistics.
- Work out the variance and standard deviation for pooled independent variables.
Verified Answer
RM
Learning Objectives
- Absorb the key ideas of mean and standard deviation relevant to probability and statistics.
- Work out the variance and standard deviation for pooled independent variables.