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3 years ago

12

WILL GIVE BRAINLIEST PLEASE ANSWER HURRYYYYY

1 answer:

Elan Coil [88]3 years ago

4 0

Answer:

Ok so sorry if not right so sorry but I think

Step-by-step explanation:

4-5=1/ 4-3=1-5-3 ok so u will add all this up and i think it should at least be 17 again so sorry if not right :(

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Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was

Ivan

Answer: $\pm0.1706$

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of $\alpha:0.05$ : $z_{\alpha/2}= 1.96$

Sample mean : $\overline{x}=2.5$

Standard deviation : $\sigma= 0.5$

We assume that this is a normal distribution.

Margin of error : $E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706$

Hence, the margin of error is $\pm0.1706$

7 0

3 years ago

In the question below, what are the independent and dependent variables?

Neporo4naja [7]

Answer:

Dependent variable is the amount of hours of sleep.

Independent variables are gender, amount of time spent studying, and hours of activity.

6 0

3 years ago

ASAP! I will give branilest!

Vilka [71]

Answer:

1 = No 2 = Yes 3 = 1.88

Step-by-step explanation:

8 0

3 years ago

What is the definition of union and intersection

Mkey [24]

Step-by-step explanation:

the union of two sets is a new sets that contains all of the elements that are in at least one or two sets and written as (A U B)

while intersection of two sets is a new set that contains all of the elements in both sets and written as (A n B)

3 0

3 years ago

\large -\frac{2}{3}x+3=\frac{2}{3}x+\frac{1}{3}

german

Answer:

$\boxed {x = 2}$

Step-by-step explanation:

Solve for the value of $x$ :

$-\frac{2}{3}x + 3 = \frac{2}{3}x + \frac{1}{3}$

-Take $\frac{2}{3}x$ and subtract it from $-\frac{2}{3}x$ :

$-\frac{2}{3}x + 3 -\frac{2}{3}x = \frac{2}{3}x - \frac{2}{3}x + \frac{1}{3}$

$-\frac{4}{3}x + 3 = \frac{1}{3}$

-Subtract both sides and convert $3$ to a fraction:

$-\frac{4}{3}x + 3 - 3 = \frac{1}{3} - 3$

$-\frac{4}{3}x = \frac{1}{3} - \frac{9}{3}$

Since both $\frac{1}{3}$ and $\frac{9}{3}$ have the same denominator, then you would subtract the numerator:

$-\frac{4}{3}x = \frac{1 - 9}{3}$

$-\frac{4}{3}x = \frac{8}{3}$

-Multiply both sides by $-\frac{3}{4}$ , which is the reciprocal of $-\frac{4}{3}$ :

$x = \frac{8}{3} (-\frac{3}{4})$

$x = \frac{-8(-3)}{3 \times 4}$

$x = \frac{24}{12}$

-Divide $24$ by $12$ :

$x = \frac{24}{12}$

$\boxed {x = 2}$

So, therefore, the value of $x$ is $2$ .

5 0

2 years ago