Plug in a and be into the equations:
Answer:
What the question says is true.
Step-by-step explanation:
A x% confidence interval in the format (lower end, upper end) of a sample mean means that we are x% sure, that is, there is a x% chance, that the true mean of the sample is in this interval.
In this problem, we have that:
99% confidence interval is (50,60)
So there is a 99% chance that the sample mean is between 50 and 60.
So what the question says is true.
Answer: area is 12 square units
Step by step explanation:
MNOPQR = area of a rectangle that is 12 square units + Area of a rectangle that is (3-2)*(7-4)which is 3 square units
because 3-2 = the width of the smaller rectangle which is line PQ, while 7-4 = the length of the smaller rectangle which is line OP
Answer:
42b-7.5
Step-by-step explanation:
you should be subtracting the discounted money and its the only option that does that. Basically process of elimination.
Answer:
y = 7/10
Step-by-step explanation:
1. Subtract 10 from both sides of the equation
2. Simplify
3. Subtract 5y from both sides of the equation
4. Simplify
5. divide both sides of the equation
6. simplify
7. solution