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4 years ago

Which one of the following numbers will appear farthest to the left on a number line?

Mathematics

1 answer:

gulaghasi [49]4 years ago

8 0

I think not sure I think -2 but if I had the whole answer to your question I might know more

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What is the missing numbers in this sequence: , 7, 5, 3, , -1

matrenka [14]

Answer:

1 is the missing number.

Step-by-step explanation:

5 0

3 years ago

PLEASE HELPP. BRAINLIEST

o-na [289]

Answer:

12,670,000,000-I think if its moving right one

Step-by-step explanation:

3 0

3 years ago

Annika is selling art prints at a comic convention.The convention charged her $50 for her table space, and she is selling her pr

asambeis [7]

If she wants to make 130.00, she should sell 90 prints. She is charged at first so she starts at -$50.00. And I don’t understand the first question.

5 0

3 years ago

Which letters Shown below on the number line also have their opposites labeled? (A- A and D) (B- B and C) (C- A B and C) (D- B C

anygoal [31]

try number 4 I thinks its that one or number 1

6 0

3 years ago

The comprehensive strength of concrete is normally distributed with μ = 2500 psi and σ = 50 psi. Find the probability that a ran

VARVARA [1.3K]

Answer:

The probability that the diameter falls in the interval from 2499 psi to 2510 psi is 0.00798.

Step-by-step explanation:

Let's define the random variable, $X =$ "Comprehensive strength of concrete". We have information that $X$ is normally distributed with a mean of 2500 psi and a standard deviation of 50 psi (or a variance of 2500 psi). In other words, $X \sim N(2500, 2500)$ .

We want to know the probability of the mean of X or $\bar{X}$ that falls in the interval $[2499;2510]$ . From inference theory we know that :

$\bar{X} \sim N(2500, \frac{2500}{5}) \Rightarrow \bar{X} \sim N(2500,500)$

Now we can find the probability as follows:

$P(2499 \leq \bar{X} \leq 2510) \Rightarrow P(\frac{2499 - 2500}{500} \leq \frac{\bar{X} - 2500}{500} \leq \frac{2499 - 2500}{500} ) \Rightarrow\\\Rightarrow P(-0.002 \leq \frac{\bar{X} - 2500}{500} \leq 0.02 ) \Rightarrow P(-0.002 \leq Z \leq 0.02 )$

Where $Z \sim N(0,1)$ , then:

$P(-0.002 \leq Z \leq 0.02 ) \approx P(0 \leq Z \leq 0.02 ) = P(Z \leq 0.02 ) - P(Z \leq 0) \\P(0 \leq Z \leq 0.02 ) = 0.50798 - 0.5 = 0.00798$

8 0

4 years ago