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prohojiy [21]
3 years ago
12

The following graphs have no scales assigned to them. Which of them could not possibly be density curves for a continuous random

variable if they were provided with the right scale?

Mathematics
2 answers:
rjkz [21]3 years ago
8 0
Probabilities are always positive, between 0 and 1. This rules out C.
marysya [2.9K]3 years ago
5 0

Answer:

A, D and E

Step-by-step explanation:

Given are the graphs of some functions and we have to find which are the density functions.

Since total probability is always 1, area under the curve must be equal to 1.

APplyig this we find that graph B cannot be density function.

Since probability is non negative graph C cannot be probability density function.

A, D and E are the density graphs.

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I need help with this problem 2(w+7)+6(3w−1)
Lubov Fominskaja [6]

Use distributive property: a(b + c) = ab + ac.

2(w + 7) + 6(3w - 1) = (2)(w) + (2)(7) + (6)(3w) + (6)(-1)

= 2w + 14 + 18w - 6

<em>combine like terms</em>

= (2w + 18w) + (14 - 6) = 20w + 8

<h3>Answer: 2(w + 7) + 6(3w - 1) = 20w + 8</h3>
5 0
3 years ago
Read 2 more answers
A circle has its center at the center of a square with 26-inch sides. Using 3.14 for pi, find the area of the square not covered
AlladinOne [14]
For squrae
area=side²
perimiter=4(side)

for circle
area=pir²
circumference=2pir

side=diameter, diameter/2=radius=side/2


find area not covered
that is areasquare-areacircle
areasquare=26²=676 sqauare inches
areaciecle, diameter=side, 26/2=13, area=pi13²=169*3.14=530.66 square inches

areanotcovered=676-530.66=145.34 square inches not coverd


ratio of perimiter to circumferece
perimiter=4*26=104
circumference=2pir=2pi13=26pi=26*3.14=81.64
circumference to perimiter is 81.64/104=0.785

7 0
2 years ago
Read 2 more answers
24 cm ,18cm ,c <br> We are looking for c
Ierofanga [76]

Step-by-step explanation:

we can find the value of c by Pythagoras theorem

according to Pythagoras theorem

h² = a² + b²

where

h = hypotenuse (i.e. longest side of a right angled triangle)

a = side

b = base

so, we have to find h or hypotenuse here

h² = (24)² + (18)²

h = 576 + 324 = 900

h² = √900 = 30

c = 30

therefore, value of c is 30.

Hope this answer helps you dear!

3 0
2 years ago
200 points if you help me? 24 hours is equal to one ____ of the Earth
Trava [24]

Answer:

rotation

Step-by-step explanation:

because the earth rotates

8 0
2 years ago
Read 2 more answers
The walls of a room are representations of what basic element of geometry? A. point B. line C. plane D. ray
kkurt [141]

In geometry,

A point represents a point

Two points define a line extended on both sides of the points.

Two points define a ray if it extends on only one side of either of the points.

Three or more than three points define a plane.

Now as far as a wall is considered, it is a flat surface on which we can plot infinite points.

Hence the wall represents a plane.

Option C) is the right answer.


6 0
3 years ago
Read 2 more answers
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