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inysia [295]
3 years ago
7

A normal distribution has a mean of 50 and a standard deviation of 10. What is

Mathematics
1 answer:
Rudik [331]3 years ago
6 0

Answer:

A normal distribution has a mean of 50 and a standard deviation of 10. What is

the probability of selecting a number between 20 and 60?

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Help please..................
Svetradugi [14.3K]
Substitute p and q with the given numbers (6 and 5) then use pemdas
18+42/6-5= 20
4 0
2 years ago
Read 2 more answers
How does multiplying a vector by a scalar value of 2x change the vector?
GalinKa [24]
Recall that the direction of a vector can be seen from its slope, namely b/a.

let's take a peek at a couple of vectors, and multiply them by a scalar of 2.

hmmm say < 3 , 7 > , it has a slope of 7/3, now if we use a scalar of 2

2<3,7> => < 6 , 14 >, now, the slope of that is 14/6 which simplifies to, yeap, you guessed it, to 7/3, no change in the slope.

and say hmmmm < 11 , -2 >, slope of -2/11, let's multiply it by 2

2<11,-2> => <22 , -4 >, slope is -4/22 which simplifies to -2/11.

so, the vector's magnitude gets blown up, but the slope remains the same.
5 0
3 years ago
What is the interquartile range?<br> The interquartile range is __
xenn [34]

Answer:

<em>Your IQR or interquartile range is 2.</em>

Step-by-step explanation:

Median: 3

lower quartile: 2

upper quartile: 4

Interquartile range: upper quartile - lower quartile = answer

Interquartile range: 4 - 2 = 2

~hope this helps~

I would highly appreciate it if you give me the brainliest~ :)

4 0
3 years ago
Write an equation for the translation of y=|x|. 2 units down.
Bezzdna [24]
B. Y = <span>|x| - 2
when moving left or right...meaning moving horizontally.......the number is added inside the parenthesis. 

This one is moving up or down ....meaning moving horizontally........so the number is added outside the parenthesis. If it moves up then add(+)..........if it moves down then subtract(-). The formula used for horizontal shifts is, y=lXl + k
.Here k will become negative or remain positive based on the given data.

Now,
It's a horizontal shift, so we can eliminate C and D.
 It moves down so we will subtract and therefore we can eliminate A

so the answer is B.
 lets check our answer by using the formula

Y = lxl + k
moves 2 units down so our k = (-2)
Y = lxl + (-2)  [substitute k]
Y = lxl - 2

</span>
6 0
3 years ago
Read 2 more answers
If g(x)=25 and h(x) = 4 – X, what is the value of (g•h)(-3)?
madam [21]

Answer:

175

Step-by-step explanation:

(g*h)(x) is the product of two functions:  g(x) = 25 and h(x) = 4 - x.

This product is equal to 100 - 25x.

Substituting -3 for x, we get

(g•h)(-3) = 100 - 25(-3) = 175

5 0
3 years ago
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