Answer:
16
Step-by-step explanation:
8+8
Answer:
6750:9000*100 =
(6750*100):9000 =
675000:9000 = 75
Now we have: 6750 is what percent of 9000 = 75
Question: 6750 is what percent of 9000?
Percentage solution with steps:
Step 1: We make the assumption that 9000 is 100% since it is our output value.
Step-by-step explanation:
6750:9000*100 =
(6750*100):9000 =
675000:9000 = 75
Now we have: 6750 is what percent of 9000 = 75
Question: 6750 is what percent of 9000?
Percentage solution with steps:
Step 1: We make the assumption that 9000 is 100% since it is our output value.
The mean you found is correct, but the standard deviation is not. Recall that the standard deviation 
(
for sample) of 
points is given by
where 
is the sample size, 
is the sample mean, and 
are the prices listed in the circled column. So
I can't tell if you need to provide any more info beyond this, but given there's a plot of a generalized bell curve, I think you're also supposed to label the plot.
At the center of the bell-shaped/normal distribution is the mean. Notice there are three tick marks to either side of the mean - these are probably supposed to represent prices that fall exactly 1, 2, and 3 standard deviations from the mean. These are, from left to right,
Well is $4 million is $4,000,000 pull the decimal 6 places back to get 4 x 10^6
4x + 20 + 2x + 30 = 100
6x + 10 = 100
6x = 90
x = 18
