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
lakkis [162]
3 years ago
5

The state’s Gaming Control Board does random inspections of casino games. An inspector observed 40 spins of the roulette wheel i

n a certain casino, and she recorded whether the result was a red number ("r") or a black number ("b"). (Assume that none of these results was a "0" or "00," which are green numbers.) Her observations are given below (the first row has the first 20 observations, and the second row has the next 20 observations). At the 0.05 significance level, test the claim that the red and black numbers occur in a random order. b r r b b r b r b r b r r b r b b b b b r r r r r r b r r r b r b r r r b r b b Identify the value of the TEST STATISTIC used in the hypothesis test of this claim.
Mathematics
1 answer:
solniwko [45]3 years ago
7 0
Ddffdzszksjndbdbd xbsns
You might be interested in
ASAP!!! WILL GIVE BRAINLIEST!!
Ivan

Answer:

Combination without repetition

Step-by-step explanation:

The fruit he chooses doesn’t matter because he’s simply throwing them in his lunch box (so it’s a combination). And because there is a limited amount of fruit it is without repetition.

5 0
3 years ago
Read 2 more answers
A cardboard box without a lid is to have a volume of 8,788 cm3. Find the dimensions that minimize the amount of cardboard used.
Montano1993 [528]

Answer:

  x = y = 26 cm; z = 13 cm

Step-by-step explanation:

The generic solution for the minimum material in an open-top box is that the box is square and half as high as it is wide. It is half a cube of twice the volume.

The dimensions of the square base are ...

  ∛(2·8788 cm³) = 26 cm

Then the height is half that, or 13 cm.

  x = y = 26 cm; z = 13 cm

_____

If you need to see the development, you can use the method of Lagrange multipliers to find the minimum area for the given volume;

  area = xy +2(xz +yz)

  volume = xyz = 8788

We require each of the partial derivatives of L with respect to x, y, z, and λ to be zero.

  L = xy +2(xz +yz) +λ(xyz -8788)

  partial with respect to x: 0 = y+2z +λyz

  partial with respect to y: 0 = x +2z +λxz

  partial with respect to z: 0 = 2x+2y +λxy

  partial with respect to λ: 0 = xyz -8788

From the first two equations, we have ...

  λ = (y +2z)/(yz) = 1/z +2/y

  λ = (x +2z)/(xz) = 1/z +2/x

Equating these expressions for λ, we find ...

  1/z +2/y = 1/z +2/x   ⇒   x = y

The third equation then tells us ...

  λ = (2x +2y)/(xy) = 2/y +2/x

Comparing this to either of the first two expressions for λ, we see ...

  1/z +2y = 2/x +2/y   ⇒   z = x/2

This is the result we started the answer with:

  x = y = 2z = ∛(2·8788 cm³)

7 0
2 years ago
If you reflect (–2, –8) across both axes, which quadrant will it be in? Justify your reasoning.
stepan [7]
The quadrant would be the first one, because once reflected over the y-axis, it would become (2,-8), and once reflected over the x-axis, it would become (2,8)
8 0
3 years ago
Read 2 more answers
Write the augmented matrix for each system of equations.
Virty [35]

Answer:

  see below

Step-by-step explanation:

List the coefficients and constant for an equation in one row of the matrix. The variables should be in the same order. Any missing terms are replaced by zero.

  \left[\begin{array}{ccc|c}9&-4&-5&9\\7&4&-4&-1\\6&-6&1&-5\end{array}\right]

8 0
3 years ago
Most investors in the stock market are trying to buy a stock at a _______
gogolik [260]

Answer:

d

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What is the value of X <br><br> A 21<br> B 41<br> C 20<br> D 22
    12·1 answer
  • Plz help me I don’t understand it’s hard
    10·1 answer
  • Morgan fills a 1-liter jar with water from the pond. She uses a 100-milliliter cup to scoop water out of the pond and pour it in
    13·2 answers
  • PLEASE HELPPPPPPPPPPPP
    5·2 answers
  • (Another Easy Question) Claire has 5 markers and Bob has 3, what is the ratio of Bob’s markers to Claire’s markers? Marking Brai
    14·1 answer
  • What is the value of 9.6 x 12.643?
    9·2 answers
  • The secret to football betting​
    9·2 answers
  • Find the missing angle​
    7·1 answer
  • 7 x 4 - 20 <br> Answer this 2 mins later (timer on math probs)
    13·1 answer
  • Martina runs 3/1/2 miles every day for 7 days . How many miles does she run altogether
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!