Answer:
<u>The standard error of distribution for n = 4 is 5 and for n = 25 is 2.</u>
Step-by-step explanation:
1. Let's review the information given to us for solving the question:
Population mean = 72
Standard deviation = 10
Sample₁ = 4
Sample₂ = 25
2. For finding the standard error of the mean, we use the following formula:
Standard error = Standard deviation / √Size of the sample
Standard error for Sample₁ = 10/√4
<u>Standard error for Sample₁ = 10/2 = 5</u>
Now, let's find the standard error for Sample₂
Standard error for Sample₂ = 10/√25
<u>Standard error for Sample₂ = 10/5 = 2</u>
Answer:
x=2.17
Step-by-step explanation:
14.88+x=17.05
We move all terms to the left:
14.88+x-(17.05)=0
We add all the numbers together, and all the variables
x-2.17=0
We move all terms containing x to the left, all other terms to the right
x=2.17
For question 8, you'll have to calculate the price for three lamps and the sofa together. Take the total price of the items and multiply the percentage.
For question 9, the formula for simple interest is price(P) x rate(R) x time(T) / 100. Put in the information given:)
Answer:
3
Step-by-step explanation:
3 is closer to 0
The place value of the 5's in 6755 reading from left to right is the first 5 is in the tens place and means 50 because 5x10=50. The second 5 is in the ones place and stands for 5 because 5x1=5.
