Answer:
x=2
Step-by-step explanation:
2x+4=4x
-2x -2x
4=2x/2x
4/2=x
x=2
Answer:
The Answers are right under you.
Answer: Nothing happens to 3 or 2. Only y is increasing. Everything else stays the same
Answer:
The confidence interval for the population mean μ is
Step-by-step explanation:
Given :
Number of weights of newborn girls n=185.
Mean hg
Standard deviation s=7.5 hg
Use a 95% confidence level i.e. cl=0.95
To find : What is the confidence interval for the population mean μ?
Solution :
Using t-distribution,
The degree of freedom
The t critical value is t=1.973.
The confidence interval build is
Substitute the values,
Therefore, the confidence interval for the population mean μ is
Answer: 74
Step-by-step explanation:
48+75+25/2