Answered: The approximate mean age is[ ] years.…

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 frequency distribution given below is constructed from the ages of 200 people of 40 years old or older. Age Interval Rel. frequency 40-49 0.25 50-59 0.28 60-69 0.30 70-79 0.08 80-89 0.06 90-99 0.03 Based on this frequency distribution number of people who are older than 59 and younger than 80 is
The following shows the age of 20 children Age frequency 1 5 2 6 3 7 4 2 What is the mean age correct to 1 decimal place?
approximate the mean of the grouped data 135-139: 7 140-144: 16 145-149: 12 150-154: 10 155-159: 19
ASAP!! ANSWER According to the research conducted by the geologists of University of Texas, the temperatures of soil in 0C at 750 meters deep inside the ground on different locations of earth are mentioned below: 68.4 72.3 58.7 48.3 53.8 73.2 37.9 55.4 42.7 84.6 67.4 58.5 92.4 62.5 87.8 Calculate: (i) Arithmetic Mean (ii) Median (iii) Mode (iv) Variance (v) Standard Deviation
Define harmonic mean and give the formula for harmonic mean.
Light bulb lifetime. Find the mean and median for the data in the following table. Interval Frequency The mean is 799.5-899.5 The median is (Round to two decimal places if needed.) 899.5-999.5 8 Life (Hours) of 50 Randomly Selected Light Bulbs 999.5-1,099.5 21 1,099.5-1,199.5 10 1,199.5-1,299.5
Calculate arithmetic mean by the short-cut method using frequency distribution.
How to construct the Cumulative Frequency Distributions? Explain with the example.
• Question 18 %3D A random sample of 15 song lengths (in minutes) on a playlist found: = 275.6, s = 12.9. Build a 80% Cl for the population mean length of a song on the playlist. Round all intermediate calculations to two decimals, then construct the Cl and enter like this: (min,max). Note: if you use a built-in Cl command on a calculator/computer, you might get marked wrong due to rounding. Use the formulas given in the text/notes. a. Since n < 30, O It is important that song lengths be normally distributed O We use s, not o O We use a T-interval O We use a Z-interval b. The Cl is: octor Submit Question ét 21 MacBook Air 20 F3 O00 000 F4 F1 77 F7 F2 F5 F6 F8 %23 & %24
The population of an island has increased over the past 30 years, and is expected to continue to increase in 2020. Find an approximate value for the mean population for the 40-year period given in the population chart below. 1980 1990 2000 2010 2020* Population Population Population Population Population 96,000 120,000 148,000 162,000 191,000 *estimated ..... The approximate mean population for the island is реople.
K Light bulb lifetime. Find the mean and median for the data in the following table. Interval Frequency 799.5-899.5 2 Life (Hours) of 50 Randomly Selected Light Bulbs 899.5-999.5 999.5-1,099.5 8 20 The mean is 1,099.5-1,199.5 1,199.5-1,299.5 10 10
3. ……..Plot is used to study patterns in the values of a numeric variable over time. 1 point Time-Series Frequency polygon Doughnut chart

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The approximate mean age is[ ] years. Age Frequency 0-9 26 10-19 27 20-29 13 30-39 28 40-49 30 50-59 55 60-69 45 70-79 18 80-89 5