1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Musya8 [376]
2 years ago
12

A group of dental researchers are testing the effects of acidic drinks on dental crowns. They have five containers of crowns lab

eled V, W, X, Y, and Z. They will randomly select one of the containers to be the control for the experiment by drawing one of five well-mixed slips of paper with the same labels from a hat. Which of the following is the probability model for the control container?
Mathematics
1 answer:
mestny [16]2 years ago
5 0

Answer:

\begin{array}{cccccc}{x} & {V} & {W} & {X} & {Y} & {Z} & P(x) & {0.20} & {0.20} & {0.20} & {0.20} & {0.20} \ \end{array}

Step-by-step explanation:

Given

S = \{V,W,X,Y,Z\}

n(S) = 5

Required

The probability model

To do this, we simply calculate the probability of each container.

So, we have:

P(V) = \frac{n(V)}{n(S)} = \frac{1}{5} = 0.20

P(W) = \frac{n(W)}{n(S)} = \frac{1}{5} = 0.20

P(X) = \frac{n(X)}{n(S)} = \frac{1}{5} = 0.20

P(Y) = \frac{n(Y)}{n(S)} = \frac{1}{5} = 0.20

P(Z) = \frac{n(Z)}{n(S)} = \frac{1}{5} = 0.20

So, the probability model is:

\begin{array}{cccccc}{x} & {V} & {W} & {X} & {Y} & {Z} & P(x) & {0.20} & {0.20} & {0.20} & {0.20} & {0.20} \ \end{array}

You might be interested in
Four children have small toys. The first child has 1/10 of the toys, the second child has 12 more toys than the first, the third
GREYUIT [131]
Let the total toys be x.

The first has (1/10)x =  x/10


The third child has one more toys than the first =  x/10  + 1

The fourth has double of the third:  =  2* (x/10 + 1)  =  2x/10 + 2


Since we know that the second child has 12 more toys than the first

Therefore the Second  minus First = 12.


First let us find the second.

1st + 2nd + 3rd + 4th = x

x/10   +  2nd +  (x/10 + 1) + (2x/10 + 2) = x

2nd + x/10  + x/10 + 1 + 2x/10 + 2 = x

2nd + x/10 + x/10 + 2x/10 + 1 + 2  = x

2nd + 4x/10 + 3 = x

2nd = x - 4x/10 - 3

2nd =  6x/10  - 3

But recall

2nd - 1st = 12

6x/10 - 3 - x/10 = 12

6x/10 - x/10 = 12 + 3

5x/10 = 15

5x =  15 * 10

x  = 15*10 /5

x = 30

So there were 30 toys in all.
3 0
3 years ago
What does it mean for a fraction to be in simplest form?
DerKrebs [107]
A fraction is in it's simplest form if both of the numerator and denominator are not divisible by a number.
8 0
3 years ago
12. Find the area of a circle with a circumference<br> of 11(3.14) feet
sweet-ann [11.9K]

Answer:

A≈9.63

Step-by-step explanation:

Circumference: 11

Using the formulas

A=πr2

C=2πr

Solving forA

A=C2

4π=112

4·π≈9.62887

6 0
2 years ago
Alicia wants to cover a footrest in the shape of a rectangular prism with cotton fabric. The footrest is 14 inches by 11 inches
kati45 [8]

Answer:

Since the footrest measures 1.54 square yards, Alice will not be able to cover it completely.

Step-by-step explanation:

Since Alicia wants to cover a footrest in the shape of a rectangular prism with cotton fabric, and the footrest is 14 inches by 11 inches by 13 inches while she has 1 square yard of fabric, to determine if she can she completly cover the footrest the following calculation must be performed:

1 square yard = 1296 square inches

14 x 11 x 13 = X

154 x 13 = X

2.002 = X

2.002 / 1.296 = 1.54

Thus, since the footrest measures 1.54 square yards, Alice will not be able to cover it completely.

7 0
3 years ago
A triangular scarf has an area of
miskamm [114]

Answer

36 = (0.5)(2h)(h)

36 = h2

Step-by-step explanation:

b represents the base

h represents the height

b =2h

3 0
2 years ago
Other questions:
  • Jack bought 5 pounds of Halloween candy. He gave out 3 pounds of the candy to trick or treaters and ate 10 ouncess of the candy.
    13·2 answers
  • Help me plz, thanks.
    5·1 answer
  • on the highway Anita drove an average speed of 60.2 miles per hour at that speed about how far can she travel in three and a hal
    11·1 answer
  • The scale of a map is 1 cm: 77 km.
    12·1 answer
  • I need help on this. An answer and an explanation would be great!!
    15·1 answer
  • A circle drawn on a coordinate plane has the equation x2+y2−6x+16y+50.4375=0 . Part A: What is the center of this circle? Expres
    13·1 answer
  • BD is a diameter of circle Q. If M_ACB=30°, what is M&lt;DBA?
    5·1 answer
  • What is 9z + 2z -8 equivalent to after being simplified?
    9·2 answers
  • A weight of 270 pounds falls
    9·2 answers
  • Please answer! Need help!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!