All categories

3 years ago

It always seems to rain on the day after July 4th.

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

Answer:

The inductive reasoning is based on A: a limited number of observations

Step-by-step explanation:

Let's say you lived until 90 years old, and took a observation on July 4th each year. Even if you lived until 90 years old, you would only have 90 observations. And inductive reasoning allows for statements to be false, so any of the 90 observations that you took can be proven false. So really, you would have only 90 observations, with any of them that could be false. A limited number of observations would be the only thing that you could base this reasoning off of.

You might be interested in

What is 0.08 ten times as much of

pav-90 [236]

.008 would be the answe

4 0

3 years ago

Read 2 more answers

Find x <br><br><br> please help me

Mrac [35]

X = 30 I think as angle on straight line = 180 so 180-103 = 77 , 30+43 = 73 , 77+73 = 150 , 180-150= 30 , then opposite angles are the same so therefore x = 30 degrees

8 0

3 years ago

Taylor writes an expression with 5 terms. All 5 terms are like terms. How many terms are in the equivalent expression with the l

maks197457 [2]

I'm not positive, but wouldn't it be 1 because they are all like terms? When like terms are similar you combine them together do you not?

4 0

3 years ago

Of the total population of the United States, 20% live in the northeast. If 200 residents of the United States are selected at r

Snezhnost [94]

Answer:

0.0465 = 4.65% probability that at least 50 live in the northeast.

Step-by-step explanation:

I am going to use the normal approximation to the binomial to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

$E(X) = np$

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that $\mu = E(X)$ , $\sigma = \sqrt{V(X)}$ .

In this problem, we have that:

$n = 200, p = 0.2$

$\mu = E(X) = np = 200*0.2 = 40$

$\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{200*0.2*0.8} = 5.65685$

Approximate the probability that at least 50 live in the northeast.

Using continuity correction, this is $P(X \geq 50 - 0.5) = P(X \geq 49.5$ , which is 1 subtracted by the pvalue of Z when X = 49.5. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{49.5 - 40}{5.65685}$

$Z = 1.68$

$Z = 1.68$ has a pvalue of 0.9535

1 - 0.9535 = 0.0465

0.0465 = 4.65% probability that at least 50 live in the northeast.

3 0

3 years ago

I am very confused send help

enyata [817]

Okay so let’s start with number one you have 2 out of the 3 sides and you have to solve for the third

Let’s call the side you are looking for side A than the side with 13 side B and the side with 29 side C

So
B=13
C=29
A= ?

You would use the equation

A^2 + B^2 = C^2

So

A^2 + (13)^2 = (29)^2

13^2 = 169
29^2 = 841

So

A^2 + 169 = 841

A^2 = 672

A= 4 times the square root of 42

Or if yu need a estimated answer

A= 25.9

8 0

3 years ago