d. The cardio was for a medium or long time. e. The cardio was for a short time or a bike ride. f. The cardio was from walking given it was a short time. g. The cardio was for a medium time given it was skating.
d. The cardio was for a medium or long time. e. The cardio was for a short time or a bike ride. f. The cardio was from walking given it was a short time. g. The cardio was for a medium time given it was skating.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
9. D
9. E
9. F
9.g

Transcribed Image Text:**Exercise Problem: Probability and Cardio Activities**
The table below represents a set of 88 cardio exercises categorized by activity type and duration. Your task is to calculate the probability of selecting a particular exercise that matches a specific description. Be sure to round your answers to 3 decimal places or present them as a percentage with one digit past the decimal. Don't forget to show your work!
| | Walk | Skate | Bike | Total |
|-------------|------|-------|------|-------|
| **Short** | 8 | 3 | 22 | 33 |
| **Medium** | 7 | 15 | 18 | 40 |
| **Long** | 2 | 4 | 9 | 15 |
| **Total** | 17 | 22 | 49 | 88 |
**Questions:**
a. What is the probability that the cardio was a long bike ride?
b. What is the probability that the cardio was a walk?
c. What is the probability that the cardio involved skating or was of a short duration?
d. What is the probability that the cardio was for a medium or long duration?
e. What is the probability that the cardio was of a short duration or involved biking?
f. Given that the cardio was of a short duration, what is the probability that it involved walking?
g. Given that the cardio involved skating, what is the probability that it was for a medium duration?
**Instructions for Filling the Answers:**
- **Box a**: Calculate the probability by dividing the number of long bike rides by the total exercises.
- **Box b**: Determine the probability by dividing the total number of walks by the total exercises.
- **Box c**: Add the probabilities of skating and short exercises, ensuring no double-counting.
- **Box d**: Sum the probabilities of medium and long exercises.
- **Box e**: Sum probabilities of short exercises and biking.
- **Box f**: Determine conditional probability for walking given a short exercise.
- **Box g**: Find conditional probability for a medium duration given the exercise involved skating.
Compute these probabilities based on the counts provided in the table above to obtain accurate results.
Expert Solution

Step 1
walk | skate | bike | total | |
short | 8 | 3 | 22 | 33 |
medium | 7 | 15 | 18 | 40 |
long | 2 | 4 | 9 | 15 |
total | 17 | 22 | 49 | 88 |
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