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
Gekata [30.6K]
3 years ago
15

You toss a coin and roll a number cube. Find P(heads and an even number)

Mathematics
2 answers:
mezya [45]3 years ago
3 0
"and" means summe
P(coin)+P(cube)=1/2+1/6=0,666667
The chance to get head is always 1/2 no matter how often you toss the coin
And the chance to get a number when you roll a number cube is always 1/6

Did you mean that?
ivanzaharov [21]3 years ago
3 0
 <span>there are 12 possible outcomes. 
Heads - 1 
Heads - 2 
Heads - 3 
Heads - 4 
Heads - 5 
Heads - 6 
Tails - 1 
Tails - 2 
Tails - 3 
Tails - 4 
Tails - 5 
Tails - 6 

You want heads AND an even number, so that narrows it down to three. 
Heads - 2 
Heads - 4 
Heads - 6 

So thats 3/12 chance, which is simply a 25.00 percent chance. 


Much simper way to do so is that are 4 outcomes if you don't count the numbers. 
Heads - Even 
Heads - Odd 
Tails - Even 
Tails - Odd 

so you can also get 25.0% that way.</span>
You might be interested in
What is the yintercept of f(x) = (3/5)^x<br> A: (1,3/5)<br> B: (1,0)<br> C:(0,0)<br> D: (0,1)
zysi [14]

Answer:

I think its A

Step-by-step explanation:

5 0
3 years ago
FIND THE SUM:<br> (6x^2-2x-3)+(x^2-3x+1)<br><br> 1.6x^2+6x+3<br> 2.7x^2+5x+2<br> 3.7x^2-5x-2
Butoxors [25]

8x^2-5x-2

method

open bracket

6x^2-2x-3+x^2-3x+1

collect like terms

6x^2+2x^2-3-3x+1

8x^2-3-3x+1

again collect like terms

8x^2-2x-3x-3+1

8x^2-5x-3+1. (-×-=+ addition but keeping sign minus

8x-5x-2. (-×+=-)

5 0
3 years ago
Please help. Picture uploaded below.
sukhopar [10]

Answer: The answer is the number of each type of topping ordered.

7 0
2 years ago
. The National Sleep Foundation surveyed representative samples of adults in six different countries to ask questions about slee
scoundrel [369]

Answer:

Yes the conclusion in the question  is a reasonable conclusion

Step-by-step explanation:

From the question we are told that

    The sample size is  n_1 = n_2 = n = 250

     The sample mean for USA is  \= x_1 =  391 \ minutes

     The sample mean for Mexico is \= x_2 = 426 \ minutes

     The sample standard deviation for USA is  s_1 =  25 \ minutes

    The sample standard deviation for Mexico is  s_2 =  49 \  minutes

     

The null hypothesis is  H_o  :  \mu_1 = \mu_2

The alternative hypothesis is  H_a  :  \mu_1  < \mu_2

Generally the test statistics is mathematically represented as

        z =  \frac{\= x_1 - \= x_2 }{ \sqrt{ \frac{s_1^2}{n_1} + \frac{s_2^2}{n_2 } } }

=>     z =  \frac{ 391  - 426  }{ \sqrt{ \frac{25^2}{250} + \frac{49^2}{250} } }

=>     z =  -10

From the z table  the area under the normal curve to the left corresponding to   -10  is

    p-value =  P(Z <  -10 ) =  0.00

Generally from the value obtained we see that

  The p-value is  <  \alpha  hence

The decision rule is

Reject the null hypothesis

The conclusion is  

 The is sufficient evidence to conclude that adults in the United States get less sleep on work nights than adults in Mexico

Hence the conclusion in the question is a  reasonable conclusion

6 0
3 years ago
Scientific notation 3.000052
notka56 [123]
There is really nothing to change here but it could be written as
3.000052x10 with no power
3 0
3 years ago
Other questions:
  • At top speed, a coyote can run at a speed of 44 miles per hour. if a coyote could maintain its top speed, how far could it run i
    5·2 answers
  • What is the simplified form of x minus 5 over x squared minus 3x minus 10 ⋅ x plus 4 over x squared plus x minus 12? (6 points)
    9·2 answers
  • A circle has a circumference of 3.14<br> What is the diameter of the circle?
    11·1 answer
  • 2/x = 6/2<br> Solve for x.<br><br><br> 2/3<br> 1 1/2<br> 6
    5·2 answers
  • The function is given by the formula f(x)=3x+2.
    12·1 answer
  • In need help plz.....………
    15·1 answer
  • Please help!<br> What percentage of students scored between 70 and 90?image^
    13·1 answer
  • A cab company charges a $1 boarding fee and a meter rate of $11 per mile. The equation is y = 11x + 1 where x represents the num
    7·2 answers
  • A water jug holds 8 quarts of water. The jug is shared evenly between 4 people. How many cups of water does each person get?
    8·1 answer
  • Charles is 20% heavier than Edith. If Charles weighs 60kg, what is Edith's weight?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!