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riadik2000 [5.3K]
3 years ago
13

What does it mean to be "certain" to occur?

Mathematics
1 answer:
Luden [163]3 years ago
5 0

Certain means the event will happen.

Impossible means the event would never happen.

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How does the value of the 5 in 524.2 differ from the value of the 5 in 254.6??
mina [271]
In 524.2, 5 is in the hundreds place, so it stands for 500. In 254.6, 5 is in the tens place, so it stands for 50. You know what place it is in by how far to the left or right it is from the decimal point. 
4 0
3 years ago
V104 broadcast 20 minutes of news for every 2 minutes. V105 broadcast 25 minutes of news for every 4 minutes. Which station has
Anni [7]

Answer:

V105 because it releases longer news reports over a reasonable amount of time

Step-by-step explanation:

V104-

20min news: 2 minutes

40 mins news:4 mins

V105-

25 min news:4 mins

50 min news:8 mins

3 0
2 years ago
In order to use the slope intercept formula you must solve what variable?
Naddika [18.5K]
B would be your answer

6 0
3 years ago
A financial talk show host claims to have a 55.3 % success rate in his investment recommendations. You collect some data over th
baherus [9]

Answer:

There is a 25.52% probability of observating 4 our fewer succesful recommendations.

Step-by-step explanation:

For each recommendation, there are only two possible outcomes. Either it was a success, or it was a failure. So we use the binomial probability distribution to solve this problem.

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:

p = 0.553, n = 10

If the claim is correct and the performance of recommendations is independent, what is the probability that you would have observed 4 or fewer successful:

This is

P(X \leq 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)

In which

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

P(X = 0) = C_{10,0}.(0.553)^{0}.(0.447)^{10} = 0.0003

P(X = 1) = C_{10,1}.(0.553)^{1}.(0.447)^{9} = 0.0039

P(X = 2) = C_{10,2}.(0.553)^{2}.(0.447)^{8} = 0.0219

P(X = 3) = C_{10,3}.(0.553)^{3}.(0.447)^{7} = 0.0724

P(X = 4) = C_{10,4}.(0.553)^{4}.(0.447)^{6} = 0.1567

P(X \leq 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) = 0.0003 + 0.0039 + 0.0219 + 0.0724 + 0.1567 = 0.2552

There is a 25.52% probability of observating 4 our fewer succesful recommendations.

3 0
3 years ago
Right answer gets brainlyest
lyudmila [28]

Answer:

\frac{2}{3} (x+6)

Step-by-step explanation:

\frac{2}{3} x+4= \frac{2}{3} (x+4÷\frac{2}{3})

\frac{2}{3}x+4 = \frac{2}{3} (x+4×\frac{3}{2})

\frac{2}{3}x+4 = \frac{2}{3} (x+\frac{12}{2})

\frac{2}{3}x+4 = \frac{2}{3} (x+6)

3 0
2 years ago
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