Which formula is used to measure accuracy?

How many bits strings of length 12 contain (8 pts)? a. exactly three 1s? b. at most three 1s? c. at least three 1s? d. an equal

Irina-Kira [14]

1. Exactly three 1 s?

$\left(\begin{array}{c}12 \\3\end{array}\right)=220$

2. At most three $1 \mathrm{~s}$ ?

$\left(\begin{array}{c}12 \\0\end{array}\right)+\left(\begin{array}{c}12 \\1\end{array}\right)+\left(\begin{array}{c}12 \\2\end{array}\right)+\left(\begin{array}{c}12 \\3\end{array}\right)=1+12+66+220=299 \text {. }$

3. At least three 1 s?

Take a shortcut by using the previous answer: $2^{12}-66-12-1=4017$

4. An equal number of $0 \mathrm{~s}$ and $1 \mathrm{~s}$ ?

$\left(\begin{array}{c}12 \\6\end{array}\right)=924$

<h3>What is strings ?</h3>

The C programming language includes a set of functions executing operations on strings in its standard library. Different operations, such as copying, concatenation, tokenization, and searching are supported.

In C programming, a string exists as a sequence of characters terminated with a null character \0. For example char c[] = "c string"; When the compiler discovers a sequence of characters enclosed in the double quotation marks, it appends a null character \0 at the end by default. The C language does not have a distinctive "String" data type, the way some other languages such as C++ and Java do. Instead, C stores strings of characters as arrays of chars, completed by a null byte.

1. Exactly three 1 s?

$\left(\begin{array}{c}12 \\3\end{array}\right)=220$

2. At most three $1 \mathrm{~s}$ ?

$\left(\begin{array}{c}12 \\0\end{array}\right)+\left(\begin{array}{c}12 \\1\end{array}\right)+\left(\begin{array}{c}12 \\2\end{array}\right)+\left(\begin{array}{c}12 \\3\end{array}\right)=1+12+66+220=299 \text {. }$

3. At least three 1 s?

Take a shortcut by using the previous answer: $2^{12}-66-12-1=4017$

4. An equal number of $0 \mathrm{~s}$ and $1 \mathrm{~s}$ ?

$\left(\begin{array}{c}12 \\6\end{array}\right)=924$

To learn more about strings refer to:

brainly.com/question/27251062

#SPJ4

3 0

2 years ago

Which of the following memories would NOT be an example of long-term memory? a. acknowledging that you just sat down b. remember

Sati [7]

Answer: the following memories would NOT be an example of long-term memory are the letter a) and c)

<em> -acknowledging that you just sat down </em>

-recollecting what you had for breakfast an hour ago

Explanation:

as the Long-term memory, also called inactive memory or secondary memory, is a type of memory that stores memories for a period of time greater than five o six months

6 0

4 years ago

Add three methods to the Student class that compare twoStudent objects. One method (__eq__) should test for equality. A second m

shusha [124]

Answer:

class Student(object):

def __init__(self, name, number):

self.name = name

self.scores = []

for count in range(number):

self.scores.append(0)

def getName(self):

return self.name

def setScore(self, i, score):

self.scores[i - 1] = score

def getScore(self, i):

return self.scores[i - 1]

def getAverage(self):

return sum(self.scores) / len(self._scores)

def getHighScore(self):

return max(self.scores)

def __eq__(self,student):

return self.name == student.name

def __ge__(self,student):

return self.name == student.name or self.name>student.name

def __lt__(self,student):

return self.name<student.name

def __str__(self):

return "Name: " + self.name + "\nScores: " + \

" ".join(map(str, self.scores))

def main():

student = Student("Ken", 5)

print(student)

for i in range(1, 6):

student.setScore(i, 100)

print(student)

print("\nSecond student")

student2 = Student("Ken", 5)

print(student2)

print("\nThird student")

student3 = Student("Amit", 5)

print(student3)

print("\nChecking equal student1 and student 2")

print(student.__eq__(student2))

print("\nChecking equal student1 and student 3")

print(student.__eq__(student3))

print("\nChecking greater than equal student1 and student 3")

print(student.__ge__(student3))

print("\nChecking less than student1 and student 3")

print(student.__lt__(student3))

if __name__ == "__main__":

5 0

4 years ago

Technical term

Ivanshal [37]

Answer:

<em><u>We limit the number of queries to the 32 as "portable" in the term (and any subsequent words) was excluded from the investigation</u></em>.

6 0

3 years ago

why does planets orbit the sun? asap i give brainlist i know it on that subject i dont know what else goes with it

Fynjy0 [20]

Answer:

Anyway, the basic reason why the planets revolve around, or orbit, the Sun, is that the gravity of the Sun keeps them in their orbits. Just as the Moon orbits the Earth because of the pull of Earth's gravity, the Earth orbits the Sun because of the pull of the Sun's gravity.

Explanation:

7 0

3 years ago