3 years ago

What is an outlier? How does it effect data like mean, median, and mode?

1 answer:

3 0

An outlier is a number much smaller or larger than the rest of the group of numbers. And outlier does not affect the median or the mode at all. It only affects the mean.

You might be interested in

...... ..... .... ....

OleMash [197]

14×2×2×2×2= 224
Chase scored 224 points on thursday

5 0

3 years ago

The cost of joining a DVD club and buying DVDs is a linear function of the number of DVDs bought. The cost of 3, 5, and 7 DVDs i

suter [353]

Answer:

A. y = 3x + 3

Step-by-step explanation:

Slope = change in y / change in x

From 3 to 5 (x) = +2

From 12 to 18 (y) = +6

slope, m = 6/2 = 3

Using point slope form

y - y1 = m (x - x1)

y - 12 = 3 (x - 3)

y - 12 = 3x - 9

y = 3x -9 + 12

y = 3x + 3

5 0

4 years ago

Doreen lives 3/4 miles from the library. If Sheila lives 1/2 as far away as Doreen, which statement is true?

Lena [83]

Answer:

A. Sheila lives closer to the library

Step-by-step explanation:

8 0

4 years ago

What is the principle square root of 1600?<br> A. -40<br> B. 40<br> C. both

WINSTONCH [101]

The answer is B 40........

7 0

3 years ago

Read 2 more answers

Which expression is equivalent to the following?

xeze [42]

Step-by-step explanation:

$\sin^{4}x \: - \cos^{4} x = (\sin^{2}x)^{2} - (\cos^{2}x)^{2}$

$= (\sin^{2}x)^{2} - (1 - \sin^{2}x)^{2}$

$= \sin^{4}x - (1 - 2\sin^{2}x + \sin^{4}x)$

$= 2\sin^{2}x - 1$

$= - \cos2x$

Note: I used the identity

${ \sin }^{2} x = \frac{1}{2} (1 - \cos \: 2x)$

for the last step.

PS. I love proving trigonometric identities!

3 0

3 years ago