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3 years ago

How do you know a resource is credible

Computers and Technology

1 answer:

Alisiya [41]3 years ago

5 0

Answer:

There are several main criteria for determining whether a source is reliable or not.

1) Accuracy. Verify the information you already know against the information found in the source

2) Authority. Make sure the source is written by a trustworthy author and/or institution

3) Currency

4) Coverage

Explanation:

You might be interested in

Sorting Records in a Form

Naya [18.7K]

Answer:

1. Open the form in the standard form view.

2. Put the cursor in the field to use for sorting.

3. Open the Home tab

4. In the Sort & Filter group, click ascending or descending

Explanation:

Took the test :)

7 0

3 years ago

For this programming assignment you will implement the Naive Bayes algorithm from scratch and the functions to evaluate it with

DanielleElmas [232]

Bayes’ Theorem provides a way that we can calculate the probability of a piece of data belonging to a given class, given our prior knowledge.

P(class|data) = (P(data|class) * P(class)) / P(data)

Where P(class|data) is the probability of class given the provided data.

Explanation:

Naive Bayes is a classification algorithm for binary and multiclass classification problems.
It is called Naive Bayes or idiot Bayes because the calculations of the probabilities for each class are simplified to make their calculations tractable.

This Naive Bayes tutorial is broken down into 5 parts:

Step 1: Separate By Class : Calculate the probability of data by the class they belong to, the so-called base rate. Separate our training data by class.

Step 2: Summarize Dataset : The two statistics we require from a given dataset are the mean and the standard deviation

The mean is the average value and can be calculated using :

mean = sum(x)/n * count(x)

Step 3: Summarize Data By Class : Statistics from our training dataset organized by class.

Step 4: Gaussian Probability Density Function : Probability or likelihood of observing a given real-value. One way we can do this is to assume that the values are drawn from a distribution, such as a bell curve or Gaussian distribution.

Step 5: Class Probabilities : The statistics calculated from our training data to calculate probabilities for new data. Probabilities are calculated separately for each class. This means that we first calculate the probability that a new piece of data belongs to the first class, then calculate the second class, on for all the classes.

8 0

4 years ago

Ask the user to type in an integer greater than 50 and assign it to a variable called x. Write a program to calculate the sum of

Zinaida [17]

Answer:

The solution in Python is as follows:

num = int(input("Number: "))

if num>50:

sum = 0

count = 0

for i in range(1,num):

count = count + 1

sum = sum + i**2

if sum > num:

sum = sum - i**2

count = count - 1

break;

print("Sum: "+str(sum))

print("Numbers: "+str(count))

else:

print("Number must be greater than 50")

Explanation:

The condition stated in the question do not conform with the example. The question says, the loop should stop when sum > x.

But:

When x = 100 and sum = 91, the program loop should not stop because 91 is not greater than 100.

However, I'll answer based on the example given in the question.

This prompts user for number

num = int(input("Number: "))

The following if condition is executed if number is greater than 50

if num>50:

This initializes sum to 0

sum = 0

This initializes count to 0

count = 0

The iterates through the inputted number (e.g. 100)

for i in range(1,num):

This increases the count

count = count + 1

This calculates the sum of square of the positive integer

sum = sum + i**2

The following removes excess number from the sum

if sum > num:

sum = sum - i**2

count = count - 1

break;

This prints the calculated sum

print("Sum: "+str(sum))

This prints the count of number used

print("Numbers: "+str(count))

The following is executed if user input is less than 50

else:

print("Number must be greater than 50")

3 0

3 years ago

How does technology improve productivity at home? (Select all that apply.)

Aliun [14]

Answer:

B, C

Explanation:

5 0

3 years ago

How do you hack a iPhone, Like If you forgot your password and want to get back in your phone. What do you do?

s344n2d4d5 [400]

Answer:

fix it on itunes

Explanation:

or get a new one

6 0

3 years ago

Read 2 more answers