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Burka [1]
2 years ago
5

How many subsets does the set {c,o,v,i,d} have?

Mathematics
1 answer:
3241004551 [841]2 years ago
5 0
<h3>Answer:  32</h3>

Explanation:

If a set has n items inside it, then there will be 2^n different subsets. This includes the original set itself (since any set is a subset of itself).

Here we have n = 5 items in the given set, so there are 2^5 = 32 different subsets.

For more information, I recommend looking up the term "power set".

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Suppose that the rate of return on stocks is normally dis-tributed with mean of 9% and a standard deviation of 3%. If I pick fiv
alisha [4.7K]

Answer:

The probability that at least two stocks will have a return of more than 12% is 0.1810.

Step-by-step explanation:

Let <em>X</em> = rate of return on stocks.

The random variable <em>X</em> follows a Normal distribution, N (9, 3²).

Compute the probability that a stock has rate of return more than 12% as follows:

P(X\geq 12)=1-P(X

**Use the <em>z</em> table for the probability.

The probability of a stock having rate of return more than 12% is 0.1587.

Now define a random variable <em>Y</em> as the number of stocks that has rate of return more than 12%.

The sample size of stocks selected is, <em>n</em> = 5.

The random variable <em>Y </em>follows a Binomial distribution.

The probability of a Binomial distribution is:

P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0, 1, 2, ...

Compute the value of P (X ≥ 2) as follows:

P (X ≥ 2) = 1 - P (X < 2)

              = 1 - P (X = 0) - P (X = 1)

              =1-{5\choose 0}(0.1587)^{0}(1-0.1587)^{5-0}-{5\choose 1}(0.1587)^{1}(1-0.1587)^{5-1}\\=1-0.4215-0.3975\\=0.1810

Thus, the probability that at least two stocks will have a return of more than 12% is 0.1810.

6 0
3 years ago
HELPPP ASAP!!! PLSSSS!!!!!!
jonny [76]

Answer:

2. B

3.B

4.C

6A. 6

6B. 12

6C. 19.6

6D. 18.75

6E. I cant see

6F. I cant see

Step-by-step explanation:

2. 1/4*40=10

3. type the choice into the calculator

4. 2/5 of 30 or 2/5*30=12

6. A-F type into the calculator

3 0
2 years ago
Determine whether the system of equations has no solution, one solution, or infinitely many solutions
Vinil7 [7]

Answer:

one solution

Step-by-step explanation:

y=-3x+5

y=1/2x-2

You can tell straight off the bat, it does have a solution, and it isn't infinite solutions. If it had no solution, it would have the same slope but different y-intercepts. If it had infinite solutions, the 2 equations would have to be the exact same. So there is only one solution.

---

hope it helps

4 0
3 years ago
Plz help me with my math
rodikova [14]

Answer: The answer is C

Step-by-step explanation:

8 0
3 years ago
Jennifer wants to convert 7.85 meters to centimeters but she does not have paper pencil or calculator describe a method she can
lilavasa [31]
She can move the decemal place 2 places to the right because a centimeter is 100 times smaller than a meter. so it would be 785 centimeters

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8 0
3 years ago
Read 2 more answers
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