The ages of Joseph's five cousins are listed below.10 | 7919 201) Calculate the mean.2) Fill in the table below: Fill in the differences of each data value from the mean, then the squareddifferences.(x – µ)?-1079.19203) Calculate the population standard deviation (ơ).E (x – µ)?O =(Please round your answer to two decimal places)N

Given problem Given that The ages of Joseph's five cousins are listed below. 10 , 7 , 9 , 19 ,…

Answered: The ages of Joseph's five cousins are…

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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Students in a statistics class took their first test. The following are the scores they earned. Fill in the stem-and-leaf plot below use the tens place as the stem and the ones place as the leaf. Describe the shape of the distribution. 73 84 95 91 98 97 90 74 74 82 63 79 82 88 74 88 67 81 83 69 73 95 91 94 86 56 94 62 a) Data were collected for variable(s). Is it appropriate to make a stem-and-leaf plot for this type of data and number of variables? . b) Complete the stem-and-leaf plot below. You must put commas between the leaves. Stems Leaves 5 c) What shape is the stem-and-leaf plot above?
Using your calculator, find the range and standard deviation, round to two decimals places:The table below gives the number of hours spent watching TV last week by a sample of 24 children. 71 23 53 59 75 72 34 26 52 78 38 50 65 83 54 87 60 84 23 83 90 28 94 10 Range = Standard Deviation =
The data below shows the number of credits completed by certain students at a local college. Credits completed Number of students 18 7 21 1 24 27 4 Find the mean number of credits completed by a student. Round your answer to one decimal place if necessary. Mean =
The decrease in cholesterol level (in mg/dL) for ten individuals are listed below. Calculate the range of the data. 16 22 17 18 22 19 21 20 18 23
The mean scores for students in a statistics course (by major) are shown below. What is the mean score for the class? 9 engineering majors: 90 5 math majors: 94 13 business majors: 76 The class's mean score is________ (Type an integer or a decimal rounded to two decimal places as needed.)
The data in the table represent the ages of the winners of an award for the past five years. Use the data to answer questions (a) through (c). 25 30 61 48 42 a. Determine the population mean age, μ, of the five winners. μ=________________ (Type an integer or a decimal.) b. Consider samples of size 3 without replacement. Find the mean of the variable x. Ages x Ages x Full data set 25, 30, 61 38.67 25, 48, 42 38.33 25, 30, 48 34.33 30, 61, 48 46.33 25, 30, 42 32.33 30, 61, 42 44.33 25, 61, 48 44.67 30, 48, 42 40.00 25, 61, 42 42.67 61, 48, 42 50.33 The mean of the variable x is ______________. (Round to two decimal places as needed.) c. Find μx, using only the result of part (a). μx=_________________ (Type an integer or a decimal.)
The histogram shows the ages of 25 CEOs listed on a certain website. Based on the distribution, what is the approximate mean age of the CEOs in this data set? Write a sentence in context (using words in the question) interpreting the estimated mean.
n The gas mileages (in miles per gallon) for 26 cars are shown in the frequency distribution. Approximate the mean of the frequency distribution. Gas Mileage (in miles per gallon) Frequency 8 29-32 33-36 13 37-40 1 41-44 4 ... The approximate mean of the frequency distribution is (Round to one decimal place as needed.)
A. Which one is greater the mean or the median? Which one is better measured of the center the median or the mean? Show work B. Find the mode C. Find the median D. Find the mean (even though we must round to the one decimal place to make computations easy round you’re mean to the nearest minute)
Find the mean for the recorded exam scores (in points) from a statistics exam. Round the answer to one decimal place. 36 34 92 60 55 79 74 30 Mean = 21 39 11 64 88 67 53
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…
The scores and their percent of the final grade for a statistics student are given. What is the student's weighted mean score? The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.) Homework Quiz Quiz Project Final Exam Score Percent of final grade 86 10 83 10 98 10 98 40 89 30

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