All categories

1 year ago

Check the following data set for outliers if there is more than one answer separate them with the commas

Mathematics

1 answer:

ch4aika [34]1 year ago

8 0

We have the following data set: {245, 253, 220, 241, 282, 234, 236, 249}

The mean value is 245.

The standard deviation is 18 (rounded)

An outlier is any data that diverges significantly from the majority of the data set.

If we consider as outliers every data that distances from the mean in more than one standard deviation, then the outliers will be any data less than 227 or greater than 263

Therefore, the outliers are 220 and 282.

You might be interested in

1 1/3 x 5/8 A.3/4 B.4/5 C.5/6 D.5/8

Dmitriy789 [7]

The answer is 5/6, hope this helps

5 0

3 years ago

Read 2 more answers

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B

Goshia [24]

A, B and C working together will finish same piece of work in 10 days

A can do a piece of work in 20 days. That is A is doing the work at a rate of 1 / 20. Therefore

B = 1 / 30

C = 1 / 60

A, B and C working togehter their rate will be added together =

A + B + C = 1 / 20 + 1 / 30 + 1 / 60 = 1 / 10

so they can work together to finish same piece of work in 10 days

4 0

2 years ago

What are the number of integral solutions of the equation 2x+2y+z=20 such that x>=0 , y>=0 , z>=0?

zaharov [31]

$2x+2y+z=20\\
z=\dfrac{20}{2x+2y}\\
z=\dfrac{10}{x+y}$

Now, for z to be an integer, the sum x+y must be a divisor of 10.
It has to be a positive divisor since z≥0. Also x≠y.

$x+y=1 \\
x=1-y\\
$
x≥0 and y≥0 so y can be equal to either 0 or 1. There are 2 solution in this case.

$x+y=2\\
x=2-y\\$
In this case, y can be equal to 0,1, or 2, but for y=1 ⇒ x=1, so there are two solutions.

$x+y=5\\
x=5-y$
y can be 0,1,2,3,4 or 5 - 6 solutions

$x+y=10\\
x=10-y$
y can be 0,1,2,3,4,5,6,7,8,9,10, but for y=5 ⇒ x=5, so 10 solutions.

2+2+6+10=20 solutions in total.

6 0

3 years ago

Please help! i was wondering how you would solve this question!

Anon25 [30]

Answer: C. 150 km²

Step-by-step explanation:

Use similar triangle proportion to find x:

$\dfrac{x}{4.5}=\dfrac{15.3+7.4}{7.4}\\\\\\x=\dfrac{4.5(22.7)}{7.4}\\\\\\x=13.8\\\\\text{Notice that x is the diameter of the circle}\implies r=\dfrac{13.8}{2}=6.9\\\\\\\text{Find the area of the circle using }A=\pi r^2\\A=\pi (6.9)^2\\\\.\ =\pi (47.6)\\\\.\ =149.6\\\\.\ \approx150$

4 0

3 years ago

Mel has $35 and withdraws $200 from his bank account from the ATM. He bought a pair of pants for $34.00, 2 shirts for $16 each a

Westkost [7]

$34.00 - pants.

$16.00 ×2 = $32.00 - shirts.

$24.00×2= $48.00 - shoes.

$34.00+ $32.00 + $48.00 = $114.00

$200.00 - $114.00 = $86.

but if you count $35 then he had , $121

6 0

4 years ago