At a meeting of a weight-loss group, each of the 30 members reported the number of calories in his/her supper the previous day. Forthe grouped data listed below, give the modal class and compute the mean and standard deviation. Round the values to the nearesthundredth (two decimal places).Class LimitsFrequency9.427-445446-464465-483484-5022.503-521Modal class:=471.46Mean ≈16Standard deviation ≈8/9

The frequency distribution is shown below Class Limits Frequency 427 - 445 9 446 -464 4…

Answered: At a meeting of a weight-loss group,…

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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Test Scores Your scores for the 20 surprise math quizzes last semester were (out of 10) as follows. 4.1 9.5 10.0 3.6 8.0 9.5 7.4 6.5 7.0 8.0 8.0 8.5 7.5 7.0 8.0 9.0 10.0 8.5 7.5 8.1 Use these raw data to construct a frequency table with the following brackets: 2.1-4.0, 4.1-6.0, 6.1-8.0, 8.1-10.0. Scores 2.1-4.0 4.1-6.0 6.1-8.0 8.1-10.0 Frequency Find the probability distribution using the (rounded) midpoint values as the values of X. 3.0 5.0 7.0 9.0 P(X = x)
Use the following digits to construct a frequency distribution and then a histogram. Use classes of 0, 1, 2, 3 , 4 , 5 , 6, 7 , 8, 9 (note that each class only contains one value) 000000112333455555555555566888899
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…
Find the mean for the set of grouped data. The mean is (Round to two decimal places if needed.) Interval 0.5-2.5 2.5-4.5 4.5-6.5 6.5-8.5 Frequency 1 8 5 1
A sample of students having an online class before noon was taken. They were asked "Are you still in your pajamas?" The following frequency table summarizes the responses Valid 0.32 no Integer, decimal, or E notation allowed yes Total What is the proportion for those still in pajamas? (use 3 decimal places.) Frequency 42 32 74 pajamas Percent 56.8 43.2 100.0 Valid Percent 56.8 43.2 100.0 Cumulative Percent 56.8 100.0 ...
Use the following frequency distribution table to find the value of the mean score. Scores Frequency1 - 3 54 - 6 17 - 9 3 Find the value of the standard deviation. Give your answer accurate to 1 place after the decimal point. σ =
Find the mean of the grouped frequency distribution. Interval Frequency 0-9 4 10-19 20-29 30-39 40-49 50-59 5 10 9 3 1 ESS D What is the mean of the grouped data? (Round to the nearest hundredth as needed.)
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and standard deviation of 1.00 degrees C. A thermometer is randomly selected and tested. Draw a sketch and find the temperature reading corresponding to Upper P 84, the 84 th percentile. This is the temperature reading separating the bottom 84 % from the top 16 %. A. Which graph represents Upper P 84? B. The temperature for Upper P 84 is approximately (Round to two decimal places as needed.)
Plz help asap 5.
Ten friends kept track of how many times they sent a text over a one hour period. The results are in the table below. number of texts 5 6 7 7 8 10 10 15 16 17 They determine that the mean of the data set is 10.110.1, but they also want to know the range and standard deviation. Calculate the range of the data set.Is this correct answer 12? Calculate the POPULATION (since it's just two friends, they're the population) standard deviation of the data set.I have a hard time
Among fatal plane crashes that occurred during the past 50 years, 668 were due to pilot error, 57 were due to other human error, 628 were due to weather, 449 were due to mechanical problems, and 325 were due to sabotage. Construct the relative frequency distribution. What is the most serious threat to aviation safety, and can anything be done about it? Cause Frequency Pilot error Other human error Weather Mechanical problems Sabotage % (Round to one decimal place as needed.) % %
K A data set lists weights (lb) of plastic discarded by households. The highest weight is 5.26 lb, the mean of all of the weights is x=2.312 lb, and the standard deviation of the weights is s = 1.118 lb. a. What is the difference between the weight of 5.26 lb and the mean of the weights? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the weight of 5.26 lb to a z score. d. If we consider weights that convert to z scores between 2 and 2 to be neither significantly low nor significantly high, is the weight of 5.26 lb significant? a. The difference islb. (Type an integer or a decimal. Do not round.) View an example Get more help. ... Clear all Check answer Incor

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