<span>Note that the mean (78 +90 +456 +676 + 111+ 381+ 21)/7 = 259
The differences (in absolute value - we're going to square later so it doesn't matter) between each piece of data and the mean are
181, 169, 197, 417, 148, 122, 238
Square each of these and add the results together to obtain 367452
Now your question depends on whether you want the sample standard deviation or population standard deviation - which you have not specified. In the first case divide by 6. In the second case divide by 7. We get roughly 61242 or 52493. The square root of each yields 247.47 or 229.11 depending on whether you want the sample sd or pop sd. The 4 choices imply you are looking for the latter, so the answer is A.i think</span>
Start, the first MAD is 2.5 go right, the second MAD is 3 MAD diagonal down, third is 6 go left. Fourth is MAD 9 straight down 2.8, Fifth diagonal up, 6th right MAD 1.5 =Finish
Answer:
1. 10.5 liters
2. 1,500 cups of tea
3. 960 milliliters
4. 1/4 a liter
Step-by-step explanation:
1. If there are 7 days in a week, and she drinks 1.5 liters a day, we just multiply 1.5 (liters) x 7 (days) = 10.5 liters
2. There are 1000 milliliters in 1 liter. Multiply 1.5 liters by 1000 milliliters = 1,500 milliliters
3. If you multiply 800 by 0.2 (20%) you will get 160. Then add 160 + 800 = 960 milliliters
4. If you look at the fraction wall I included, you will see how there are 4/4 in 1 liter, and 2/2 in 1 liter. Half of a liter (1/2) is the same as 2/4. If you were to subtract 3/4 from 2/4, you'd get 1/4 left.
Hope that helps!
Step-by-step explanation:
Below is an attachment containing the solution.
Answer:
it makes the goals easier to reach
Step-by-step explanation:
you dont want to say you need 1,000 dollars.. you would want to say you are going to save 5 dollars a week till you reach it.