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
Nikitich [7]
3 years ago
11

A problem in a test given to small children asks them to match each of three pictures of animals to the word identifying that an

imal. If a child assigns the three words at random to the three pictures, find the probability distribution for Y, the number of correct matches. (Enter your probabilities as fractions.)
Mathematics
1 answer:
Talja [164]3 years ago
5 0

Answer:

<u>The probability distribution for y is 1/3 when y = 0, 1/2 when y = 1 and 1/6 when y = 3</u>

Step-by-step explanation:

We can assign n! number of ways the words to the pictures.

In our question, n = 3, thence n! = 3 * 2 * 1 = 6

The outcome of those six ways for y are:

1 Perfect match

3 one match

2 no matches at all

Therefore, we can confirm that P for y is:

P (0) = 2/6 = 1/3

P (1) = 3/6 = 1/2

P (3) = 1/6

You might be interested in
I need help with exercises 3,4, and 6 please show all work and don’t answer number 5 just tell me if it is correct
joja [24]
*If you need me to do #5, DM me!

3. 
The area of a triangle can be given by (just plug and chug as always):
A_t = \frac{1}{2} bh = \frac{1}{2}(3)(4) = 6ft^2
The area of the triangle is 6ft².

4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):
A_t = \frac{1}{2} bh = \frac{1}{2}(8)(3) = 12m^2
A_r = bh = 12(8) = 96m^2
Now we just add them:
96+12 = 108m^2

So, the area of that pentagon is 108m².

5. You are actually wrong on this one because the area of a triangle is:
A_t = \frac{1}{2}bh
So, just halve your answer and it will be correct.

6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:
A_t = \frac{1}{2}bh = \frac{1}{2}(2.5)(5) = 6.25cm^2
Multiply by 4 to get total area:
6.25*4 = 25cm^2

So, the area of the given rhombus is 25cm².
8 0
3 years ago
A line segment has endpoints (4 7) and (1 11). what is the length of the segment
Colt1911 [192]
You need to add the number of blocks or lines are betweenhem.
7 0
3 years ago
A Is a number that Is a multiple of two or more denominators.
34kurt
The answer to 1 is common multiple. And the answer to 2 is common denominator
3 0
3 years ago
Divide the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of
irina1246 [14]
Let's rewrite the expression correctly:
 (12x3 - 11x2 + 22x - 5) / (4x -1)
 Dividing the expression between (4x -1) we have:
 3x2 - 2x + 5
 We can check the result:
 (3x2 - 2x + 5) * (4x-1)
 = 12x3 - 8x2 + 20x - 3x2 + 2x - 5
 = 12x3 - 11x2 + 22x - 5
 Division OK.
 Answer:
 
The result of the division is:
 
3x2 - 2x + 5
5 0
3 years ago
How do you find unknown angle measurements with no measurements on either side of the angle
Arada [10]

Answer:

See Below

Step-by-step explanation:

There Are Multiple Ways Of Doing This.

  1. Calculate The Angle, If Possible.
  2. Measure The Sides.

This Is All I Am Able To Think Of At The Moment.

8 0
3 years ago
Other questions:
  • What is the product?
    6·1 answer
  • What is the Perimeter of 168
    10·1 answer
  • X + y = 10<br> x - y = 2
    13·2 answers
  • Is (-1,7) a solution for the system of linear equations below? x + 2y = 13 and 3x - y
    8·1 answer
  • 18. A new truck costs $32,000. The car’s value will depreciate over time, which means it will lose value. For tax purposes, depr
    6·1 answer
  • -18y + 7 = -29. What does y equal. (I’m very bad at math)
    8·2 answers
  • What is the area of a circle with a radius of 6 inches?
    10·1 answer
  • A standard six-sided die is rolled.
    12·1 answer
  • I NEED HELP NOW please
    11·2 answers
  • Write the following in expanded exponential form a. 30405
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!