The perimeter of a ruler that measures 6 in. by 5656 in. is 11,324 in.
Explanation:
To find the perimeter<span> of a rectangle or square you have to add the lengths of all the four sides.</span>
They need to get at least 250 boxtops each day to meet or exceed the goal. Hope this helps!
Answer:
Probably unequal ( B )
Step-by-step explanation:
<u>experimental group = 10</u>
using 85% ethanol gasoline
mean = 240 pounds per 100 miles
standard deviation = 20 pounds
<u>control group = 14 vehicles </u>
using regular gasoline
mean = 252 pounds per 100 miles
standard deviation = 15 pounds
comparing the sample variance of each group shows that they are probably unequal using the equation below
Variance for a sample set of data = ∑ ( x - X ) ^2 / n - 1
where n = number of events
X = mean value
x = value of events
