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3 years ago

HELP PLZ PLZ Why should you use the median and interquartile range (IQR) to compare two populations that contain outliers?

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

3 0

Answer: The median and IQR are not influenced by the presence of outliers.

Step-by-step explanation: The median and IQR will not change with ouliers but something like mean would so if there is outliers you should use median to properly represent the numbers

hope this helps mark me brainliest if you can

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What does X equal in this equation -3/4x +1/5 = 2/3

Angelina_Jolie [31]

Answer:

$x=\frac{-45}{28}$

Step-by-step explanation:

Given equation:

$\frac{-3}{4x}+\frac{1}{5}=\frac{2}{3}$

Taking the LCM on the LHS, to make the equation in terms of 'x'

After taking LCM dividing the denominator by the above equation and multiplying numerator with the remaining value to make the equation given below

$\frac{(-3)(5)+1(4x)}{(4x)(5)} =\frac{2}{3}$

$\frac{-15+4x}{20x}=\frac{2}{3}$

On cross multiplication

$(-15+4x)(3)=2(20x)\\-45+12x=40x$

Taking the terms of x to one side to find 'x'

$40x-12x=-45$

$28x=-45\\x=\frac{-45}{28}$

8 0

3 years ago

For what values of x is the expression (x - 4)^2 > 0?

ad-work [718]

Answer:

$x4$

Step-by-step explanation:

Solve we have the inequality:

$(x-4)^2>0$

Let's solve it like a normal equation first. So, pretend the inequality is an equal sign:

$(x-4)^2=0$

Solve for x. Zero Product Property:

$x-4=0\text{ or } x-4=-0$

Add 4 to both sides for both equations:

$x=4\text{ or } x=4$

So, our roots are at x=4 and x=4.

Since our original inequality is greater than, this means that our solution will be all values to the left of our first zero and all values to the right of our second zero.

Therefore, our solution is:

$x4$

Simply put, our x can be anything except for 4 itself.

And we're done!

8 0

3 years ago

Read 2 more answers

Mike walked 3 miles in 45 minutes.

adelina 88 [10]

Answer is 15 miles per hour

4 0

3 years ago

Read 2 more answers

Christian reads 14 book every 23 week. How many books does Christian read per week? 16 38 223 6

Drupady [299]

｡☆✼★ ━━━━━━━━━━━━━━ ☾

Divide by 2 to get 1/3 of the week:

1/4 / 2 = 1/8

Multiply by 3 to get the full week:

1/8 x 3 = 3/8

Thus your answer is B. 3/8

Have A Nice Day ❤

Stay Brainly! ヅ

- Ally ✧

｡☆✼★ ━━━━━━━━━━━━━━ ☾

8 0

4 years ago

What is the best fit equation for the trend line in the scatter plot?

nordsb [41]

Answer:

B the line goes down so its a negative gradient

and you do rise which is -1 over run which is 3

7 0

3 years ago