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
Anettt [7]
3 years ago
8

In an experiment, the probability that even A occurs is 0.2 and the probability that event B occurs is 0.5. If A and B are indep

endent events, which statement is true?
A.
P(A and B) = 0.1
Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0

Answer:

oop

Step-by-step explanation:

You might be interested in
Graph help fast!!!!!!!!!!1111
ki77a [65]

Answer:

(0,0)

(1,3)

(2,6)

(3,9)

(-1,-3)

(-2,-6)

(-3,-9)

Step-by-step explanation:

The equation of the graph is y=3x

5 0
2 years ago
In a study of the accuracy of fast food​ drive-through orders, one restaurant had orders that were not accurate among orders obs
Lesechka [4]

Complete Question

In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were not accurate among 367 orders observed. Use a 0.05 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable?

Answer:

The decision rule  is

  Fail to reject the null hypothesis

The conclusion is  

  There is sufficient evidence to show that the rate of inaccurate orders is equal to​ 10%

Step-by-step explanation:

Generally from the question we are told that

   The sample size is  n =  367

    The number of orders that were not accurate is  k = 32

    The population proportion for rate of inaccurate orders is  p = 0.10

The null hypothesis is  H_o :  p = 0.10

The alternative hypothesis is  H_a :  p \ne 0.10

Generally the sample proportion is mathematically represented as  

         \^ p = \frac{k}{n}

=>      \^ p = \frac{32}{367}

=>      \^ p = 0.0872

Generally the test statistics is mathematically represented as

         z= \frac{ \^ p - p }{ \sqrt{ \frac{ p(1 - p)}{ n} } }

=>      z= \frac{ 0.0872  - 0.10 }{ \sqrt{ \frac{ 0.10 (1 - 0.10 )}{367} } }  

=>      z= -0.8174

From the z table  the area under the normal curve to the left corresponding to  -0.8174 is  

         P(z <  -0.8173 )  = 0.20688

Generally the p-value is mathematically represented as

         p- value =  2 *  0.20688

=>      p- value =  0.4138

From the value obtained we see that  p-value >  \alpha hence

The decision rule  is

  Fail to reject the null hypothesis

The conclusion is  

  There is sufficient evidence to show that the rate of inaccurate orders is equal to​ 10%

 

4 0
2 years ago
What is the volumenof the sphere rounded to the nearest hunderths?​
Kryger [21]
9202.77 it should be
7 0
3 years ago
F(x) = x2 – 2x - 8
maw [93]

Answer:

The y-intercept is the point (0,-8)

see the attached figure

Step-by-step explanation:

we have

f(x)=x^{2}-2x-8

we know that

The y-intercept is the value of the function f(x) when the value of x is equal to zero

so

For x=0

f(x)=0^{2}-2(0)-8\\f(x)=-8

therefore

The y-intercept is the point (0,-8)

see the attached figure to better understand the problem

5 0
3 years ago
One week, Steph worked 20 hours, Marco
garik1379 [7]

Answer: 9

Step-by-step explanation:

Add 20, 12, and 32 together then divide by 7 because it says "One week" and a week is 7 days. So, it should be like 20 +12 + 32= 64

64 / (divided by) 7 = 9

4 0
2 years ago
Other questions:
  • the mendez family just bought a home for 180,000 if the value of the home increases at a rate of 3% per year, use an exponential
    8·1 answer
  • A gift box in the shape of a cube has a volume of 216 cm3 . What is the area of the base of the box
    8·1 answer
  • Evaluate the expression 5c-2 for c=5
    15·1 answer
  • Which is the next term in the number pattern
    10·2 answers
  • Lily bought 5 llamas for her farm which was 2,000 dollars. She sold 2 of her sheep for 560 dollars. Then she sold 2 of the llama
    10·1 answer
  • Find the value of h(-67) for the function below.
    8·1 answer
  • You lose one quarter, two dimes, and two nickels.
    8·2 answers
  • Jack’s backpack weighs 15 pounds. Fernando’s backpack weighs less than Jack’s. Which graph shows how much Fernando’s backpack ca
    6·1 answer
  • Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
    11·1 answer
  • Choose the one alternative that best completes the statement or answers the question
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!