Its like that because your graphing it like A (1,2)B(2,5) Pretend your graphing something
Answer:
$84.14
Step-by-step explanation:
Begin by multiplying 1.035 by 4.
Get 4.14.
Add this to the original amount deposited, $80.
The answer is $84.14
First of all we are going to take $7.25 and multiply it by 3 here is the math
7.25 x 3 = 21.75
so this means he makes 21.75 dollars a day.
since there are 365 days a year. Now i'm not saying he worked every single day but the question does not say other wise
so we would take 21.75 and multiply it by 365 heres the math
21.75 x 365 = 7,938.75
this means he makes 7,938.75 dollars a year!!
your welcome
merry christmas
Answer:
x≥2 2/5 or x≥ 2.4 or [2.4,∞)
Step-by-step explanation:
2x+7≤3x-5
7+5≤3x+2x
12≤5x
x≥12/5 or x≥2 2/5 or x≥2.4
Answer: Choice D)
He needs to square each deviation in the numerator.
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Explanation:
The sample standard deviation involves these steps
- Find the sample mean xbar.
- Subtract the xbar value from each data point. This gets us the list of deviations or how far each person is from the mean.
- Square each difference in the previous step
- Add up the squares from step 3. This is referred to as the Sum of the Squared Errors (SSE)
- Divide the SSE over n-1. If Toby was doing a population standard deviation, then he'd divide over n instead of n-1. However in much of statistics, we don't know much about a population and instead rely on sample statistics.
- The result of step 5 gets the variance. Apply the square root to the variance to get the standard deviation.
The step 3 highlighted in bold is where Toby made an error. He subtracted xbar from each person correctly, but forgot to square those deviations. The squaring is done to ensure we don't have any negative deviations.
This is what his work should look like when calculating the sample standard deviation
