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
BARSIC [14]
2 years ago
11

A computer programm contains one error.in order to find the error, we split the program in to blocks and test 2 of them,selected

at random.let X be the numer of errors in these blocks.compute E(x)...
Mathematics
1 answer:
kolezko [41]2 years ago
5 0
If the E(X) = 1 then that means it has a 100% which is incorrect.
Each block has an equal probability to contain the error so 1/3 because you choose 2/6.
You might be interested in
It is believed that 36% of the US population has never been married, 32% are divorced, 27% are married, and 5% are widowed. You
Katena32 [7]

Answer: the smallest number of people required for the sample to meet the conditions for performing inference is 100

Step-by-step explanation:

Given that;

36% of US population has never been married

32% are divorced

27% are married

5% are widowed

Taking a simple random sample of individuals to test this claim;

we need expected count in each cell to be at least 5, here the smallest proportion is 5% = 0.05

so we only need to satisfy condition for its expected count;

n × 0.05 ≥ 5

n = 5 / 0.05 = 100

Therefore the smallest number of people required for the sample to meet the conditions for performing inference is 100

6 0
2 years ago
What is the image of (7, -3) after a reflection over the x-axis?
telo118 [61]

Answer:(7,3)

Step-by-step explanation:

5 0
2 years ago
Maria put trim around a banner that is the shape of a triangle. each side is 22 inches long. maria has 1/2 foot of trim left. wh
marissa [1.9K]
Since Maria is going to put a trim around a triangle-shaped banner with 22 inches long per side, this means that for the banner, it has a total length of 66 inches. 66 inches would be equal to 5.5 foot. This means that the total length of the trim from the start is 7 foot. Hope this helps.
6 0
2 years ago
5 times a number is 14 less than the square of that number. Find the positive solution.
anastassius [24]

Write the word problem in algebraic form:

n2 -14 = 5n

Write as a quadratic:

n2 - 5n - 14 = 0

Factor:

(n+2)(n-7) = 0

Solve:

n+2 = 0    =>   n = -2

n-7 = 0    =>   n = 7

positive solution is 7.   (14 less than 72 = 35 which is also 5 times 7)

8 0
3 years ago
Read 2 more answers
One-third of a number is 84. What is the number? *
kiruha [24]
252 just do 84x3 and ya
7 0
2 years ago
Read 2 more answers
Other questions:
  • Which method can be used to solve 11x13
    6·2 answers
  • How would you type out how you showed your work
    11·2 answers
  • What is the mean of the data set? {32, 33, 34, 34, 36, 38, 38, 38, 40, 42}
    15·2 answers
  • Can someone help me with 21
    5·1 answer
  • Pls help me with this it's urgent will give branlyis.
    15·2 answers
  • Trapezoid WXYZ is shown on the coordinate grid. Trapezoid WXYZ is dilated with the origin as the center of dilation using the ru
    11·1 answer
  • Write at least 5 arithmetic sequence and determine the common difference
    8·2 answers
  • Please help!! <br><br>look at the picture for the question​
    11·1 answer
  • Write an equation that describes the function.
    12·1 answer
  • A tank is filled with 20 litres of water. Half the water is removed and replaced with anti freece and thoroughly mixed. Half thi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!