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3 years ago

13

1800=3×N help asap plzzz

1 answer:

-BARSIC- [3]3 years ago

6 0

Okay first step is dividing by three on both sides.
1800/3 = 3/3 • N
now you have
600 = N
and you’re done!!! :)

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Sphinxa [80]

Due to its subject-specific classification, ink color in pens is a qualitative variable.

<h2>What is a Qualitative variable?</h2>

The factors that cannot be measured with a numerical value are known as qualitative variables.
In order to define anything, these quantities are not quantified or tallied; instead, data is categorized.

There is no numerical way to express it.

<h3>Quantitative variable</h3>

The other choices are erroneous because the variables that are numerically specified in the other choices—an individual's weight, the number of children, and the number of miles—are these.

Therefore, all of those are quantitative variables.

Consequently, option (C) is the appropriate choice.

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2 years ago

The 2004 presidential election exit polls from the critical state of Ohio provided the following results. There were 2020 respon

lord [1]

Answer: a) $0.490\leq p\leq0.582$

b) $0.501\leq p$

Step-by-step explanation:

Given : Sample size of respondents in the exit polls : n= 2020

Number of respondents voted for George Bush = 412

Sample proportion: $\hat{p}=\dfrac{412}{768}\approx0.536$

a) Critical value for 99% confidence level : $z_{\alpha/2}=2.576$

Confidence interval for proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$=0.536\pm (2.576)\sqrt{\dfrac{0.536(1-0.536)}{768}}\\\\=0.536\pm0.046\\\\=(0.490,\ 0.582)$

Hence, the 99% confidence interval for the proportion of college graduates in Ohio that voted for George Bush: $0.490\leq p\leq0.582$

b) Critical value for 95% confidence level : $z_{\alpha/2}=1.96$

Lower confidence bound for the proportion :

$\hat{p}- z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.536-(1.96)\sqrt{\dfrac{0.536(1-0.536)}{768}}\\\\=0.536-0.035=0.501$

Hence, a 95% lower confidence bound for the proportion of college graduates in Ohio that voted for George Bush : $0.501\leq p$

7 0

3 years ago

Read 2 more answers

The following scenarious represent relations that can be graphed. for which of the graphs should the data values be continous ?

Blizzard [7]

Answer:

I would say c

Step-by-step explanation:

5 0

4 years ago

Solve: 2(5x + 3)= 25

vampirchik [111]

<h2>QUESTION:</h2>

solve : 2(5x + 3) = 25

<h2>SOLUTION:</h2>

▶️2(5x + 3) = 25

▶️ 2 × 8x = 25

▶️ 16x = 25

▶️ x = 25/16

▶️ x = 1.5625

<h2>ANSWER:</h2>

1.5625

5 0

3 years ago

Read 2 more answers

The larger of two numbers is one more than three times the smaller number.If the sum of the numbers is 49, find the numbers.

nirvana33 [79]

Answer:

larger number x = 37 and smaller number y = 12

Step-by-step explanation:

Let the larger number be <em>x </em>and the smaller number be <em>y</em>.

Sum of the numbers is $x + y = 49$ ....(1)

∴<em> $y = 49 - x$ </em>

Now, 3 times of the smaller number = 3<em>y</em>

According to question,

$x = 3y + 1 ......(2)$

Now, by substituting the value of y in (2)

$x = 3 (49 - x) + 1$

$x = 147 - 3x + 1$

$x + 3x = 148$

$4x = 148$

$x = 37$

Now,<em>y</em> = 49 - <em>x</em> and $x = 37$

$y = 49 - 37 = 12$

So the larger number x =37 and smaller number y = 12.

4 0

3 years ago