Naomi deposited money into a savings account that is compounded quarterly at an interest rate of 6%. she thinks this quarterly rate is the same as a monthly interest rate of 1.25%. is naomi right? if so, explain why and show how you got your answer. is naomi incorrect? if so, explain the mistake in her reasoning, give the correct monthly interest rate, and show how you got your answer. it’s due today

No, She is not correct.

Step-by-step explanation:

Let P is the principle amount of the money.

Then, the compound interest amount after 1 year with the compound quarterly rate of 6% is,

( By the formula, )

⇒

And, the compound interest amount after 1 year with the compound monthly rate of 1.25% is,

Therefore, By both interests rate we are getting different amounts.

Thus, there is a mistake in her calculation.

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7