Answer:
The random variables in this situation are the stock prices A and M.
The mean of Apple's stock prices is greater than the mean of Microsoft's stock prices.
The standard deviation of the price of Microsoft shares is smaller than that of Apple's share prices.
Step-by-step explanation:
The random variables in this situation are the stock prices A and M.
According to the text, it is stated that the values of Apple shares are usually higher than those of Microsoft shares. This implies that, since they are random variables, the mean of Apple's stock prices is greater than the mean of Microsoft's stock prices.
In stock prices, the standard deviation is a measure of the risk or stability of a share price. It is a measure of the price variation around its average value. The more stable the value of an action, the smaller the value of the standard deviation.
Then, according to the text, we can affirm that, since Microsoft's prices are more stable, the standard deviation of the price of Microsoft shares must be less than that of Apple's share prices.
Answer:
A. a red marble
there's more red marbles than blue and white marbles
Answer:
Distributive Property
Step-by-step explanation:
"The multiplication of a number by a sum is equal to the sum of the multiplications of this number by each one of the amounts to be added."
Answer Choice 1
Take it step by step!
First find what sqrt(x-7) is like. Compare it to sqrt(x).
You can see that in sqrt(x), when x = 0, y = 0. However, in sqrt(x-7), when x = 7, y = 0. When y = 0, sqrt(x-7) is <em>7 more</em>, which means it is shifted <em>7 units</em> to the right.
Similarly, +8 means that whatever sqrt(x-7) is, you add 8 more <em>to y</em>. Adding on extra for <em>y</em> is just moving it up by <em>8</em> units.
Hope that helped,
-sirswagger21
