Eva invested $10,000 in a savings account. If the interest rate is 3.5%, how much will be in the account in 10 years by
1 answer:
Answer:
The total in the account after 10 years would be: $14,190.68
Step-by-step explanation:
Recall the formula for continuous compounding:
where "A" is the accrued value after t years (what we need to find), "P" is the principal invested (in our case $10,000), "r" is the interest rate in decimal form (in our case r = 0.035), and "t" is the time in years (in our case t = 10). Therefore the formula becomes:
Therefore the total in the account after 10 years would be: $14,190.68
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Answer:
B. 100
Step-by-step explanation:
143-13=130
10x=130 divide both sides by 10 130/10= 13 x=13
MN=7(13)=91+9=100
LN=3(13)=39+4=43
100+43
Answer:
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
n=60 represent the sample size
X=12 represent the number of masks that had lenses pop out at 250°
represent the estimated proportion of masks that had lenses pop out at 250°
p represent the population proportion of masks that had lenses pop out at 250°
Confidence =0.9 or 90%
represent the significance level
Confidence interval
On this case we want a interval on this form :
So the critical value would be on this case and we can use the following excel code to find it: "=NORM.INV(1-0.1,0,1)"
We found the lower limit like this:
And the interval would be: