Answer:
A. !=
Explanation:
== Means equal, != is like a block of that, meaning NOT EQUAL
Answer:
total = 0
items = int(input("Enter the number of items ordered: "))
for i in range(items):
price = float(input("Enter the price of item " + str(i+1) + ": "))
total += price
if total < 200:
total += (items * 10)
print("Bill is $" + str(total))
Explanation:
*The code is in Python.
Ask the user to enter the number of items ordered
Create a for loop that iterates depending on the number of items ordered. Inside the loop, ask the price of each item and add it to the total
After the loop, check the total. If it is smaller than 200, add 10 for each item to the total
Print the total
Answer:
3.59 minutes
Explanation:
We solve this question using z score formula
Using Excel
Z-SCORE= (DataPoint-AVERAGE(DataSet))/STDEV(DataSet)
IN EXCEL,
AVERAGE, an excel function that calculates the Average of data set
STDEV.S: calculates the standard deviation while treating the data as a ‘sample’ of a population.
STDEV.P: This function calculates the standard deviation while treating the data as the entire population.
Z score formula = x - μ/σ
x = ?? μ = 2.5 minutes σ = 0.5 minutes
We are asked : If 1.5% of the callers are put on hold for longer than x minutes, what is the value of x?
Hence, Longer than = Greater than =
100 - 1.5%
= 100 - 0.015
= 0.985 ( 98.5%)
Using Excel we calculate = z score for 98.5 percentile
= 2.1701
Z score = x - μ/σ
2.1701 = x - 2.5/0.5
2.1701 × 0.5 = x - 2.5
1.08505 = x - 2.5
x = 1.08505 + 2.5
x = 3.58505
Approximately to 2 decimal places = 3.59 minutes
Therefore, 1.5% of the callers are put on hold for longer than 3.59 minutes.
Answer: c) Physical design
Explanation:
Physical design in terms of computation is defined as the model through which internal entities as well as external entities of system is depicted and displayed.The motion of the service and data flow taking place , storage of information, physical structure ,data conversion etc is described through physical design.
- Other options are incorrect because qualitative design gives evaluation about quality layout. Quantitative design is based on quantity to display the layout.
- Logical design is designing of the system through applying logic and order to arrange the data to establish relationship between system components.
- Thus, the correct option is option(c).
