The following formula is a variation of the ”compound interest formula”, compounded yearly:
I = P (1 + r)t−P
I is the interest you earn/owe
P is the amount of money at the beginning (the principal)
r is the interest rate as a decimal
t is the amount of time (in years)
Please note: The ”t” is in the exponent position. That means it’s raising
(1 + r) to the power of ”t”. You can type this in some online calculators by
holding shift and pressing the ”6” key. That should give you this carrot symbol,
ˆ, which means ”exponent”
Aaron has bought a house using a loan of $180,000, 4% interest. Their
monthly mortgage payment is $1000. The taxes and insurance for the house is
$270 a month. They make their first mortgage payment after 30 days.

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?