Answer:
C
Step-by-step explanation:
Given:
Changing the division to multiplication by taking the reciprocal of the second fraction.
<u>The correct option is C</u>
If elephant grass grows 2 1/4 inches a day, how many inches will it grow in 6 days?
1 answer:
You might be interested in
A graphing calculator shows solutions to be
.. x = {π/4, 2.034, 5π/4, 5.176}
___
Asked and answered elsewhere.
brainly.com/question/8691400
.. x = {π/4, 2.034, 5π/4, 5.176}
___
Asked and answered elsewhere.
brainly.com/question/8691400
Answer:
a) X: number of years of education
b) Sample mean = 13.5, Sample standard deviation = 0.4
c) Sample mean = 13.5, Sample standard deviation = 0.2
d) Decrease the sample standard deviation
Step-by-step explanation:
We are given the following in the question:
Mean, μ = 13.5 years
Standard deviation,σ = 2.8 years
a) random variable X
X: number of years of education
Central limit theorem:
If large random samples are drawn from population with mean and standard deviation
, then the distribution of sample mean will be normally distributed with mean
and standard deviation
b) mean and the standard for a random sample of size 49
c) mean and the standard for a random sample of size 196
d) Effect of increasing n
As the sample size increases, the standard error that is the sample standard deviation decreases. Thus, quadrupling sample size will half the standard deviation.