Answer:
As the sample size increases, the variability decreases.
Step-by-step explanation:
Variability is the measure of actual entries from mean. The less the deviations the less would be the variance.
For a sample of size n, we have by central limit theorem the mean of sample follows a normal distribution for random samples of large size.
X bar will have std deviation as 
where s is the square root of variance of sample
Thus we find the variability denoted by std deviation is inversely proportion of square root of sample size.
Hence as sample size increases, std error decreases.
As the sample size increases, the variability decreases.
Answer:
Option E
Step-by-step explanation:
This survey will not be reliable as it is chosen for convenience; the first 120 students to arrive in school on a particular morning and this collection of individuals may not be a representative of the population. The study may become biased because it does not take into account the latecomers among the students which might have been changed the study from systematically favoring certain outcomes.
Answer:
y=5x+4
Step-by-step explanation:
y=mx+b
m=slope
x=constant
b=y intercept
Answer:
imo i would go with brunette because i don't really like blondes. most ones ive met are annoying.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
Required
The total length in metres (this completes the question)
The total length is:
Convert mm to m
<em>The total length of the wood is 9.65 metres</em>
