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Triss [41]
2 years ago
14

I need help I don’t understand it

Mathematics
1 answer:
tiny-mole [99]2 years ago
4 0
Shidddd lil buddy, try the 3rd one
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Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to fi
Keith_Richards [23]

Answer:

P(X = 12) = 0.0064.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

n = 30, p = 0.2

We want P(X = 12). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 12) = C_{30,12}.(0.2)^{12}.(0.8)^{18} = 0.0064

P(X = 12) = 0.0064.

6 0
2 years ago
Determine if (3, -1) is a solution to the system.
sp2606 [1]

Answer:

<em>There are a few ways to solve systems of equations. </em>

  1. <em>There are a few ways to solve systems of equations. substitution</em>
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  3. <em>There are a few ways to solve systems of equations. substitutionelimination </em><em>Graphically</em>

<em>If you are looking at a multiple choice question use the ordered pair to plug into the answer choices and whichever one balances out will be your answer. To assist you further I would need more information from the problem. </em>

Step-by-step explanation:

<em>hope</em><em> it</em><em> will</em><em> help</em><em> you</em><em> have</em><em> a</em><em> great</em><em> day</em><em> bye</em><em> and</em><em> Mark</em><em> brainlist</em><em> if</em><em> the</em><em> answer</em><em> is</em><em> correct</em><em> </em>

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8 0
1 year ago
Find the measurements of ∠ and ∠.
kirza4 [7]

Answer:

<em>m∠ FAE = 20°, m∠ CAD = 60°</em>

Step-by-step explanation:

If you take a look at the picture below, this explanation proves that the measure of FAE ⇒ 20°, and m∠ CAD = 60°;

8 0
2 years ago
Plz help me
Snowcat [4.5K]

Answer:

9/4 as a fraction or 2.25 as a decimal

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Determine which answer is reasonable to 4.8 times 9.2<br><br>A. 14<br>B. 45.36<br>C. 432<br>D. 470.4
aev [14]
B. is reasonable because 9.2×4.8 = 44.16
4 0
3 years ago
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