Answer:
3.625
Step-by-step explanation:
Given a normal distribution :
Average weight = population mean = 172 pounds
Population standard deviation = 29 pounds
Number of samples selected(n) = 64
The standard deviation of the sample also called the standard error is the proportion of the population standard deviation to the square root of the number samples.
Sample standard deviation :
Population standard deviation /√n
= 29 /√64
= 29 / 8
= 3.625
The answer for this problem would be 31
Answer: 15,000 meters
Step-by-step explanation:
When measuring the difference in elevations between a body that is above sea level and one that is below, you simply take the distances of the bodies above and below sea level and add it up.
From sea level to Mount Ojos is 6,900 meters. Atacama trench is 8,100 meters below. From the peak of Mount Ojos to sea level is 6,900 meters. Then add the distance from sea level to Atacama to find the difference in elevations.
= 6,900 + 8,100
= 15,000 meters
Answer:
6 packs, 9 packs
Step-by-step explanation:
The ratio of mechanical pencil to free eraser is <em>2:4, or 1:2</em>.
So that means, for every free eraser you get, you bought the double amount of pencils.
12 free erasers x 2 = <em>24 pencils</em>
18 free erasers x 2 = <em>36 pencils</em>
And a pack of pencils contains 4.
24/4 = 6 packs
36/4 = 9 packs
I think it; 300cm is greater.
Why; 300 cm make 9 ft.
9 ft > 6 ft
