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
vovangra [49]
3 years ago
5

What is the probability of getting two heads and 1 tail

Mathematics
2 answers:
aleksklad [387]3 years ago
8 0
There is a 1/3 chance. Because there are 3 coins
guapka [62]3 years ago
6 0

Answer:

1/2

please mark me brainliest

You might be interested in
The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year
puteri [66]

Answer:

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

\sigma=4.1 represent the population standard deviation

n=45 sample size  

\mu_o =12 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:  

Null hypothesis:\mu \geq 10  

Alternative hypothesis:\mu < 10  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

8 0
3 years ago
Please help I need it ASAP
Anastasy [175]

Answer:

-83/51

Step-by-step explanation:

i used an app called Symbolab that solves any math problem for u

3 0
3 years ago
Calculate the percent of change: 50 pounds to 35 pounds.
Vladimir [108]
30 percent change is the answer
7 0
3 years ago
What is the solution for x if x/8= -8
LuckyWell [14K]

Answer:

x=-1

Step-by-step explanation:

just like 8/8 is 1 the same concept only you add a negative

8 0
3 years ago
Read 2 more answers
Point D is in the interior of ∠ABC. What is m∠DBC?
Rudiy27

37.5 degrees

we know angled like this always have 180 degrees total between the 2. which means we can set up a little equation to solve for x. The equation is (3x+22)+(x-4)= 180. Initially we can take the solid numbers (22 and -4) and get rid of them by taking them to the 180. 180- 22 is 158. 158 + 4 is 162. now we have 3x + x = 162. we combine like terms. means we end up with 4x =162. We now divide by 4 which means we get 40.5. Now we know x is 40.5. Now dbc is just 40.5- 4 which is 37.5.

3 0
2 years ago
Other questions:
  • Which statement could the expression n + 1 represent?
    13·2 answers
  • Each letter of the word “Mathematical” is written on individual pieces of paper and placed in a bag. You reach into the bag and
    6·2 answers
  • What is my fav color/ what is statistical and non statistical
    12·1 answer
  • What is the GCF of 16, 4089 and 689
    5·1 answer
  • What is the square root of 9
    12·2 answers
  • Teachers were told that next year they would receive a percent increase in their salary. Mrs. Bennett is making $32,000 a year a
    11·1 answer
  • Use the linear regression feature on a graphing calculator to find the correlation coefficient for the data. Round your answer t
    7·1 answer
  • What is an equation of the line that passes through the points (-4,-2)<br> and (8, 1)?
    14·1 answer
  • Which expression is equivalent to 4y (y + 3) + 4 ( y − 3)? A 5y2 + 26y – 12 B 5y2 + 2y – 12 C 12y2 + 12y – 24 D 12y2 + 2y – 24
    11·1 answer
  • The aircraft A330 flies at an average speed of 400 miles per hchor. The expression, 400t gives the distance traveled by the airc
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!