Answer:
For the sampling distribution,
a) Mean = μₓ = 55.0 students.
b) Standard Deviation = 1.8 students.
Step-by-step explanation:
The complete Question is attached to this solution.
The Central limit theorem explains that for the sampling distribution, the mean is approximately equal to the population mean and the standard deviation of the sampling distribution is related to the population standard deviation through
σₓ = (σ/√n)
where σ = population standard deviation = 4
n = sample size = 5
Mean = population mean
μₓ = μ = 55 students.
Standard deviation
σₓ = (σ/√n) = (4/√5) = 1.789 students = 1.8 students to 1 d.p
Hope this Helps!!!
Answer:
The answer is
Step-by-step explanation:
we know that
In this problem we have
so
The angle 
belong to the third or fourth quadrant
The value of 
is negative
Step 1
Find the value of
Remember
we have
substitute
------> remember that the value is negative
Step 2
Find the value of 
we have
substitute
Answer:
The total amount paid by Jill = $ (3 d)
Step-by-step explanation:
Here, the cost of 1 book = $ d
Now, the number of books purchased by Jill = 3
So, the total cost of 3 books = 3 x ( Cost of 1 book)
= 3 x ($d) = 3 d
So, if Jill purchased 3 books, the total amount paid by her = $ (3 d)
Okay add 78 and 66. Then add 96 and 108. It should be 144 by 204. I know math is hard, but when you work at it you can do amazing things! I hope that helps you.
Answer:
$550
Step-by-step explanation:
400x=2200, x is the number of groups needed to get 2200 pounds.
If you divide both sides by 400, you'll get x=5.5
Next, multiply 5.5 by $100 because each group gives $100
hope this helps!
