Answer:
Insert
'try:' at line 1
'except:' at line 3
Explanation:
The "try and except" commands in Python are used for exception handling.
try: the statements under this block are executed normally
except: the the statements under this block are executed when there is an exception.
We can use these commands to handle errors, for example, in the given scenario we don't want the user to enter a floating point number such as
1.5, 2.6 etc.
When the user enters an integer number then the except command is not executed.
When the user enters a floating point number then the except command is executed, program is stopped and error message is shown that is at line 4
Python code:
# line 1
try:
# line 2
age = int(input("Enter your age: "))
# line 3
except:
# line 4
print("Invalid input")
Output:
Test 1:
Enter your age: 20
Test 2:
Enter your age: 20.5
Invalid input
The probability that the player gets doubles less than three times in 5 attempts is; 0.9645.
<h3>How to solve Binomial Probability?</h3>
The formula for binomial probability distribution is;
P(X = x) = ⁿCₓ × pˣ × (1 - p)⁽ⁿ ⁻ ˣ⁾
where;
x = total number of successes
p = probability of a success on an individual trial
n = number of trials
We are given;
x = 3
p = 1/6 = 0.1667
n = 5
Thus;
P(X < 3) = (⁵C₂ * 0.1667 * (1 - 0.1667)⁽⁵ ⁻ ²⁾) + (⁵C₁ * 0.1667 * (1 - 0.1667)⁽⁵ ⁻ ¹⁾) + (⁵C₀ * 0.1667 * (1 - 0.1667)⁽⁵ ⁻ ⁰⁾)
Thus;
P(X < 3) = 0.9645
Thus, the probability that the player gets doubles less than three times in 5 attempts is 0.9645.
Read more about Binomial Probaility at; brainly.com/question/15246027
Answer:
1. They needed to develop multiple components in software programs.
2. The ability to overlap the development to be more evolutionary in nature.
3. The need to be more risk-averse or the unwillingness to take risks led to the use of a spiral model.
Explanation:
Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.
In SDLC, a waterfall model can be defined as a process which involves sequentially breaking the software development into linear phases. Thus, the development phase takes a downward flow like a waterfall and as such each phase must be completed before starting another without any overlap in the process.
An incremental model refers to the process in which the requirements or criteria of the software development is divided into many standalone modules until the program is completed.
Also, a spiral model can be defined as an evolutionary SDLC that is risk-driven in nature and typically comprises of both an iterative and a waterfall model. Spiral model of SDLC consist of these phases; planning, risk analysis, engineering and evaluation.
<em>What motivated software engineers to move from the waterfall model to the incremental or spiral model is actually due to the following fact;</em>
- They needed to develop multiple components in software programs.
- The ability to overlap the development to be more evolutionary in nature.
- The need to be more risk-averse or the unwillingness to take risks led to the use of a spiral model.
The number of receptacles that are needed for all of these kitchen areas are: C. Four.
<h3>What are
receptacles?</h3>
Receptacles can be defined as types of sockets or series of outlets (openings) that provides a path where current can be taken in a wiring system, so as to run electrical appliances in buildings.
Based on the information provided, the number of receptacles that are needed for all of these kitchen areas are four because one would be used in each area.
Read more on receptacles here: brainly.com/question/23839796
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