The amount of time to complete a physical activity in a PE class is normally distributed with a mean of 37.3 seconds and a standard deviation of 5.5 seconds. Round answers to 4 decimal places. a) What is the probability that a randomly chosen student completes the activity in less than 32.1 seconds? b) What is the probability that a randomly chosen student completes the activity in more than 43.5 seconds? c) What proportion of students take between 33.7 and 40 seconds to complete the activity? d) 85% of all students finish the activity in less than seconds.
The amount of time to complete a physical activity in a PE class is normally distributed with a mean of 37.3 seconds and a standard deviation of 5.5 seconds. Round answers to 4 decimal places. a) What is the probability that a randomly chosen student completes the activity in less than 32.1 seconds? b) What is the probability that a randomly chosen student completes the activity in more than 43.5 seconds? c) What proportion of students take between 33.7 and 40 seconds to complete the activity? d) 85% of all students finish the activity in less than seconds.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![The activity involves calculating probabilities and proportions based on a normal distribution of completion times for a physical activity in a PE class. The distribution has a mean of 37.3 seconds and a standard deviation of 5.5 seconds. Answers should be rounded to four decimal places.
### Questions:
a) What is the probability that a randomly chosen student completes the activity in less than 32.1 seconds?
- [Answer box provided]
b) What is the probability that a randomly chosen student completes the activity in more than 43.5 seconds?
- [Answer box provided]
c) What proportion of students take between 33.7 and 40 seconds to complete the activity?
- [Answer box provided]
d) 85% of all students finish the activity in less than how many seconds?
- [Answer box provided]
At the bottom, there is a "Submit Question" button.
(Note: There are no graphs or diagrams included in the image.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff7c3dd81-20a5-42d7-a935-4332a276b2b8%2F8cf96f51-86a6-45b9-b8ee-07a78be54bea%2F0hep00q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The activity involves calculating probabilities and proportions based on a normal distribution of completion times for a physical activity in a PE class. The distribution has a mean of 37.3 seconds and a standard deviation of 5.5 seconds. Answers should be rounded to four decimal places.
### Questions:
a) What is the probability that a randomly chosen student completes the activity in less than 32.1 seconds?
- [Answer box provided]
b) What is the probability that a randomly chosen student completes the activity in more than 43.5 seconds?
- [Answer box provided]
c) What proportion of students take between 33.7 and 40 seconds to complete the activity?
- [Answer box provided]
d) 85% of all students finish the activity in less than how many seconds?
- [Answer box provided]
At the bottom, there is a "Submit Question" button.
(Note: There are no graphs or diagrams included in the image.)
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