The variance of a constant is zero. Rule 2. Adding a constant value, c, to a random variable does not change the variance, because the expectation (mean) increases by the same amount. ... Multiplying a random variable by a constant increases the variance by the square of the constant.
The 40-year-old should have $76800 in capital. The 35-year-old should be saving $$10,320 for retirement.
<h3>How to solve for the amounts</h3>
The capital that a 40 year old has to have with an income of 32000 is
capital income at age 40 * income
= 2.4 * 32000
Capital = $76800
b. At 35 the savings income has to be
percentage of savings income * income
= 12% * $86000
= $10,320
c. There is no specified value for education earnings.
Read more money ratios here:
brainly.com/question/16812427
Answer:
D = 30*T, where D is the distance in miles and T is the time in seconds
Step-by-step explanation:
The speed of the powered scooter is 30 miles per second, so for each second, her distance will be 30 miles.
With that information, we can formulate an equation that shows her distance with relation to time:
Let's call her distance D, and the time she is traveling T
if in one second she travels 30 miles, in T seconds she will travel 30*T miles, and that is the distance she travelled, so the equation is:
D = 30*T.
1the answer to your question is c
