In a study of facial behavior, people in a control group are timed for eye contact in a 5-minute period. Their times arenormally distributed with a mean of 175.0 seconds and a standard deviation of 55.0 seconds. Use the 68-95-99.7 ruleto find the indicated quantity.a. Find the percentage of times within 55.0 seconds of the mean of 175.0 seconds.% (Round to one decimal place as needed.)b. Find the percentage of times within 110.0 seconds of the mean of 175.0 seconds.% (Round to one decimal place as needed.)c. Find the percentage of times within 165.0 seconds of the mean of 175.0 seconds.% (Round to one decimal place as needed.)d. Find the percentage of times between 175.0 seconds and 285 seconds.% (Round to one decimal place as needed.)

The empirical rule is related to the normal distribution. It shows the three different types of…

Answered: a. Find the percentage of times within…

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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Q7. The age group of people using Instagram and the number of people is given below: Age Group Number 10 – 18 18 – 26 26 – 34 34 – 42 42 – 50 50 – 58 18 24 15 14 11 8. of people Using the given data: Draw a histogram. ii. Find the number of people below the age of 26 using Instagram. iii. Which age group uses Instagram the most? iv. Find the mean of the given data. i. [1.5] [0.5] [0.5] [2.5]
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Graph the following table of values
Use the Histogram tool to develop a frequency distribution and histogram for the number of months as a customer of the bank in the data below. Compute the relative and cumulative relative frequencies and use a line chart to construct an ogive. Complete the frequency distribution for the months as a customer, and compute the relative and cumulative relative frequencies. (Type integers or decimals rounded to three decimal places as needed.) Bins Frequency Relative Frequency Cumulative Relative Frequency 10 enter your response here enter your response here enter your response here 20 enter your response here enter your response here enter your response here 30 enter your response here enter your response here enter your response here 40 enter your response here enter your response here enter your response here 50 enter your response here enter your response here enter your…
The frequency table below gives the frequency of exam scores rounded to the nearest 5%. Find the mean and round to one decimal place as needed. Number Percentages of on an Exam 65 70 75 80 85 90 95 100 Students 4 8 7 11 9 7 2 2
The (arithmetic) mean height of 50 students of a college is 5' - 8". The height of 30 of these is giveņ in the frequency distribution below. Find the (arithmetic) mean height of the remaining 20 students. Height : Frequency : 5'-4" 5'–6" 5'-8" 5'10" 6'–0" 4 12 4 8 2
Suppose there are 5 students in a room. The mean age is 19.8 years, and the median age is 19. If the youngest person leaves and is not replaced by another person, what happens to the mean and the median? O The mean and median increase. The mean increases, and the median either increases or stays the same. The mean increases, but it is impossible to determine whether the median increases, decreases, or stays the same. The mean increases, and the median stays the same. The median increases, and the mean either increases or stays the same.
A teacher categorized students by whether they regularly completed their homework (or not) and whether they passed the course (or not). The data are in the table below. Complete the Venn Diagram by using the table of values provided. Then answer the additional questions below. Completed Homework Did not Complete Homework Total Passed the Course 24 5 29 Did not Pass the Course 6 15 21 Total 30 20 50 Completed Homework Passed the Course U Enter all of your results as percents rounded to two decimal places. What percent of all the students passed the course and completed homework? % What percent of all the students passed the course and didn't complete homework? % What percent of students who completed homework passed the course? % What percent of students who did not pass the course did not complete the homework? %

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