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Mrrafil [7]
3 years ago
8

Pls help me with this question I’m trying to Anwser

Mathematics
1 answer:
tino4ka555 [31]3 years ago
8 0

Answer:Wish i could help, but I'm just as confused.

Step-by-step explanation:

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En un bolillero hay 10 bolitas iguales numeradas del 0 al 9 ¿cual es el espacio muestral?​
dolphi86 [110]
I don’t know this language
3 0
3 years ago
Can some help me with this please
olganol [36]

Answer: Ten more than twice a number is 34.

Step-by-step explanation:

it would be ten plus 2 times x=34, but we dont know that number, so we replace it with a variable.

2x+10=34

5 0
3 years ago
Look at thetriangles diagram.<br> The value of x is ___ °
NemiM [27]

By solving a linear equation we will see that the value of x is 10.

<h3></h3><h3>How to find the value of x?</h3>

Remember that for any triangle, the sum of all internal angles is always equal to 180°.

Here only look at triangle BCD, we know that:

m∠DBC = m∠ABC = 3x

m∠BCD = m∠ACB + m∠ABD = 2x + 65°

m∠ADC = 65°

Now we can write the linear equation as:

3x + 2x + 65° + 65° = 180°

5x + 130° = 180°

5x = 180° - 130°

5x = 50°

x = 50°/5 = 10°

The value of x is 10.

Learn more about triangles:

brainly.com/question/14285697

#SPJ1

4 0
9 months ago
Bob won big at bingo last night, he walked away with $800. The first thing Bob does is to take a cab to his mother's house. He g
Solnce55 [7]
Initial amount of money: $800
After paying the cab driver $20   ;    money = $800 - $20 = $780
Giving his mother 1/3 of the remaining amount, leaving him with 2/3 of it.
                             money = ($780) x (2/3) = $520
Giving his aunt 1/4 of the remaining amount, leaving him with 3/4 of it.
                           money = ($520)(3/4) = $390
Giving his friend 1/6 of the remaining amount, leaving him with 5/6 of it.
                             money = ($390)(5/6) = $325
Therefore, the amount of money Bob gets to keep is equal to $325. 
8 0
3 years ago
According to a recent​ study, some experts believe that 15​% of all freshwater fish in a particular country have such high level
Lera25 [3.4K]

Answer:

The approximate probability that the market will have a proportion of fish with dangerously high levels of mercury that is more than two standard errors above 0.15 is 0.95.

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

 \mu_{\hat p}=0.15

The standard deviation of this sampling distribution of sample proportion is:

 \sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}

As the sample size is large, i.e. <em>n</em> = 150 > 30, the central limit theorem can be used to approximate the sampling distribution of sample proportion by the normal distribution.

Compute the mean and standard deviation as follows:

\mu_{\hat p}=0.15\\\\\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.15(1-0.15)}{150}}=0.0292

So, \hat p\sim N(0.15, 0.0292^{2})

In statistics, the 68–95–99.7 rule, also recognized as the empirical rule, is a shortcut used to recall that 68%, 95% and 99.7% of the Normal distribution lie within one, two and three standard deviations of the mean, respectively.

Then,

                                  P (µ-σ < X < µ+σ) ≈ 0.68

                                  P (µ-2σ <X < µ+2σ) ≈ 0.95

                                  P (µ-3σ <X < µ+3σ) ≈ 0.997

Then the approximate probability that the market will have a proportion of fish with dangerously high levels of mercury that is more than two standard errors above 0.15 is 0.95.

That is:

P(\mu_{\hat p}-2\sigma_{\hat p}

4 0
3 years ago
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