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Class Interval 0 to < 10 10 to 20 20 to 30 30 to 40 40 to 50 50 to 60 60 to < 70 Frequency 100000 Relative Frequency Cumulative Frequency % Round to two decimal places 0000000 0000000 Cumulative Relative Frequency b. How many students spent between 40 and 60 minutes on social media? c. What percent of the students spent between 50 and 60 minutes on social media?

Class Interval 0 to < 10 10 to 20 20 to 30 30 to 40 40 to 50 50 to 60 60 to < 70 Frequency 100000 Relative Frequency Cumulative Frequency % Round to two decimal places 0000000 0000000 Cumulative Relative Frequency b. How many students spent between 40 and 60 minutes on social media? c. What percent of the students spent between 50 and 60 minutes on social media?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The amount of time (minutes) a sample of students spent on online social media in a 4-hour window is organized in a frequency distribution with 7 class intervals. The class intervals are 0 to < 10, 10 to 20, ..., 60 to < 70. The number of observations (frequencies) for the classes are 3, 10, 17, 13, 15, 11, and 5 respectively. a. Complete the following frequency table for the distribution showing frequency, relative frequency, cumulative frequency, and cumulative relative frequencies. Round to four decimal places when necessary Relative Class Interval Frequency Frequency 0 to < 10 10 to < 20 20 to < 30 30 to < 40 40 to 50 50 to 60 60 to < 70 % Round to two decimal places Cumulative Frequency b. How many students spent between 40 and 60 minutes on social media? Cumulative Relative c. What percent of the students spent between 50 and 60 minutes on social media? % Round to two decimal places Frequency d. What percent of the students spent no more than 40 minutes on social media? % Round to two decimal places e. What percent of the students spent no less than 50 minutes on social media?
Transcribed Image Text:The amount of time (minutes) a sample of students spent on online social media in a 4-hour window is organized in a frequency distribution with 7 class intervals. The class intervals are 0 to < 10, 10 to 20, ..., 60 to < 70. The number of observations (frequencies) for the classes are 3, 10, 17, 13, 15, 11, and 5 respectively. a. Complete the following frequency table for the distribution showing frequency, relative frequency, cumulative frequency, and cumulative relative frequencies. Round to four decimal places when necessary Relative Class Interval Frequency Frequency 0 to < 10 10 to < 20 20 to < 30 30 to < 40 40 to 50 50 to 60 60 to < 70 % Round to two decimal places Cumulative Frequency b. How many students spent between 40 and 60 minutes on social media? Cumulative Relative c. What percent of the students spent between 50 and 60 minutes on social media? % Round to two decimal places Frequency d. What percent of the students spent no more than 40 minutes on social media? % Round to two decimal places e. What percent of the students spent no less than 50 minutes on social media?
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