ExamGecko
Home Home / IIBA / CBDA
Question list
Search
Search

List of questions

Search

Related questions











Question 118 - CBDA discussion

Report
Export

There were 7 students enrolled in the Introduction to Artificial Intelligence course. These were the student's scores from the final exam: 64, 70, 80, 80, 90, 98, 100

What is the mean and mode for the outlined scores?

A.
83.14, 80
Answers
A.
83.14, 80
B.
79.84, 81.40
Answers
B.
79.84, 81.40
C.
80,80
Answers
C.
80,80
D.
80, 83.14
Answers
D.
80, 83.14
Suggested answer: A

Explanation:

The mean is the average of all the scores, which is found by adding them up and dividing by the number of scores. The mode is the most frequent score, which is the one that occurs the most times. To find the mean and mode for the outlined scores, we can use the following steps:

* Arrange the scores in ascending order: 64, 70, 80, 80, 90, 98, 100

* Add up the scores: 64 + 70 + 80 + 80 + 90 + 98 + 100 = 582

* Divide the sum by the number of scores: 582 / 7 = 83.14

* The mean is 83.14

* Count how many times each score occurs: 64 occurs once, 70 occurs once, 80 occurs twice, 90 occurs once, 98 occurs once, 100 occurs once

* The score that occurs the most times is 80

* The mode is 80

Therefore, the mean and mode for the outlined scores are 83.14 and 80, respectively12

Reference: 1: Mean, median, and mode review (article) | Khan Academy 2: Mean, Median, and Mode: Measures of Central Tendency - Statistics By Jim

asked 18/09/2024
Frank Acosta
38 questions
User
Your answer:
0 comments
Sorted by

Leave a comment first