Hello!
To find how much money total will be in the account after four years, you need to use the function, , as seen above. In this function, a is the starting value, r is the interest rate, and t is the amount of time (in years).
Before substituting values into the function, we need to convert 3% into a decimal. Remember that all percentages are out of 100, so we divide 3 by 100 and remove the percentage sign, or move the decimal two places to the left.
3/100 = 0.03 | 0.03 is the interest rate.
With all the necessary values, we can find the total amount in the account. In this case, a = 1200, r = 0.03, and t = 4.
y = 1350.610572, which can be rounded to 1350.61 dollars.
Therefore, after 4 years, the total amount in the account will be about 1350.61 dollars.
Answer:
Step-by-step explanation:
Hello!
The given data represents the number of units sold last month by each of the representatives of the Company.
Representative 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Month sales 2, 3, 2, 3, 3, 4, 2, 4, 3, 2, 2, 7, 3, 4, 5, 3, 3, 3, 3, 5
To calculate the mean you need to use the following formula:
X[bar]= ∑x/n = 66/20= 3.3
You expect that on average 3.3 products were sold lasrt month.
The standard deviation is the square root of the variance, so you first calculate the variance and then the standard deviation:
S²= [∑x²- (∑x)²/n ]=
= 1.589
S= 1.26
The sales show a dispersion of 1.26 arround the average value.
I hope it helps!