he estimated distribution​ (in millions) of the population by age in a certain country for the year 2015 is shown in the pie chart. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Use 70 as the midpoint for​ "65 years and​ over."   An untitled circle graph is divided into eight sectors with labels and approximate sizes as a percentage of a circle as follows: Under 4 years, 24.8, 8 percent; 5 to 14 years, 40.6, 13 percent; 15 to 19 years, 17.9, 6 percent; 20 to 24 years, 25.3, 8 percent; 25 to 34 years, 43.2, 13 percent; 35 to 44 years, 32, 10 percent; 45 to 65 years, 86.2, 27 percent; 65 years and over, 53.6, 17 percent.Under 4 years:  24.85-14 years:  40.615-19 years:  17.920-24 years:  25.325-34 years:  43.235-44 years:  3245-64 years:  86.265 years and over:  53.6

Q: Calculate the mean of the following values: 3, 36, 11, 44, 46, 8, 10. Answer rounded to the nearest…

A: Given : Values (X) : 3 , 36 , 11 , 44 , 46 , 8 , 10 Sample size (n) = 7

Q: The cost of your electricity bill for the last five months are as follows:$54, $36, $80, $65, and…

A:

Q: Calculate the median of data

A:

Q: n engineer wants to know if the mean strengths of three different concrete mix designs differ…

A: The null hypothesis in a hypothesis test will indicate that there is no relationship between the…

Q: Take 50 observations at random ranged from (117- 254). Make a grouped frequency distribution. Find…

A: We need to take a 50 observations at random ranged from (117-254). For this we can use…

Q: If you have the following data set {70, 72, 67, 78, 70} and you add 85 to the data set, how much…

A: the following data set {70, 72, 67, 78, 70} and you add 85 to the data set,

Q: please answer in text form and in proper format answer with must explanation , calculation for each…

A: 1. **Importing Libraries**: We start by importing the necessary libraries. Pandas is used for data…

Q: The following data represent the weight​ (in grams) of a random sample of 13 medicine tablets. Find…

A:

Q: The accompanying graph is a histogram of measured mid-upper arm circumferences of 298 randomly…

A: (a)The correct graph with smooth curve is this:  (b)Since there is only one peak in the presented…

Q: Calculate Mean, Mode and Median for the data: 97, 125, 165, 93, 121, 162, 96, 98, 91 93, 122, 135…

A:

Q: The ages of the members of a legislature from a particular state are listed below. Find the mean,…

A: Mean: Mean is defined as the ratio of sum of observations to the total number of observations…

Q: We have provided simple data sets for you to practice the basics of finding measures of center. For…

A: Solution: a. The given data is 2, 5, 0 and –1 Then, the mean is Thus, the mean is 1.5.

Q: Find the mean for the given data, 15,3,6,18,17

A: Answer: From the given data, 15,3,6,18,17 Sample size(n) = 5

Q: Construct a labelled box plot and state the type of skew of the following data…

A: Given n=13

Q: Akiko surveyed several friends, asking them how many siblings they had. Use this data to find the…

A:

Q: Find the median of the following data: 1, 6, 12, 19, 5, 0, 6 A. 6 B. 7 C. 19 D. 3.5

A: Consider the provided data; 1, 6, 12, 19, 5, 0, 6. We have to find the median of the given data.…

Q: We have provided simple data sets for you to practice the basics of finding measures of center. For…

A: According to the provided information, The data set are 3, 5, and 7. The mean of the data is the sum…

Q: nd the  median and mode of the following data:

A: Given data, 5,10,5,15,5,20 Sort the data in ascending order 5,5,5,10,15,20

Q: A professor administered an exam to twenty-five students. Their test scores are below.   100 70 66…

A: First enter the given data in Excel sheet.  And we can use average () command to Calculate mean. To…

Q: Using the following data, construct a box plot. Data: 21, 23, 24, 25, 29, 33, 49 Find the minimum,…

A: X (x-xbar)^2 21 66.30612 23 37.73469 24 26.44898 25 17.16327 29 0.020408 33 14.87755…

Q: Find the mean and median for the grouped data.

A: The mean and median are the types of average. Mean is the mathematical average and median is the…

Q: Question 3 Let X and Y be two independent random variables. Suppose that Var(2X – Y) = 3 and Var(X +…

A: Given,Var(2X-Y)=3Var(X+3Y)=5and X,Y are independent

Q: The number of credits being taken by a sample of 13 full-time college students are listed below.…

A: Given,9,11,12,12,9,10,8,8,8,8,8,8,9arrange the given data in ascending…

Q: Find the mean, median, and mode(s) of the data in the following stem-and-leaf plot. The leaf…

A: It is given that the data in the stem-and-leaf plot. The leaf represents the ones digit.

Q: Calculate First and Third Quartiles for the data: 210, 179, 224, 317, 189, 185, 191, 217, 225, 188,…

A: For the provided data, the first and third quartiles are;

Q: Find the mean for the given data set, 33,46,79,26,85

A: Answer: From the given data, 33,46,79,26,85 Sample size(n) = 5

Q: Find the mean, median, mode, and range for the following data set and determine the most appropriate…

A: The following data has been provided: 9, 3, -5, -3, -7, 3, 0, 6, -9, -7, -3, -8

Q: Pick any 10 two-digit number of your choice and calculate the mean, variance, IQR, and range of any…

A: Let the sample be  28, 21, 22, 28, 34, 26, 57, 48, 35, 31 Sample arranged in ascending order: 21,…

Q: The central position of the data set is measured by of the following. а. All b. Mode С. Mean d.…

A: Descriptive statistics can be used for explanatory data analysis. This will give a basic idea about…

Q: Find the best point estimate of the population proportion p

A: A drug is used to help prevent blood clots in certain patients. In clinical​ trials, among 4273…

Q: Construct a box plot from the given data. Diameters of Cans in an Assembly Line: 19. 5.6, 5.5, 5.2,…

A: Boxplot: The box plot is a graphical representation of the data that measurement on interval scale.…

Q: The histogram shows the ages of 25 CEOs listed on a certain website. Based on the distribution, what…

A: To determine the approximate mean age of the CEOs in this dataset based on the histogram, we need to…

Q: We have provided simple data sets for you to practice the basics of finding measures of center. For…

A: Provided data set is:  1, 2, 4, and 4 Number of observations (n) = 4

Q: The following DBH values were collected from a pine plantation. Please find the population, range,…

A: Our aim is to find the range , mean , median , mode from the given sample data.

Q: Find the mean (average) for the following set of numbers: x=10,24,29,19,17,1,6,14,8,6

A: From the given information we want to find the mean of the given data.

Q: 24. The IQ scores of Pusat Asasi student are shown below: 118, 123, 124, 125, 127, 128, 129, 130,…

A: Given : The IQ scores of Pursat Asasi student

Q: Use technology to calculate the mean, median and mode for the following data sets. Monthly rent ($)…

A: We will use Python as technology.  Mean :  Python Code for computing the mean.  Code :  import numpy…

Q: It's often a good idea to think about what the distribu- tion of a data set might look like before…

A: Given two variables without data to check the shape of the distribution.

Q: The following are the heights (in inches) of randomly selected men. 65, 65, 66, 68, 69, 69, 69, 69,…

A: Class boundary: The lower boundary of the class interval can be obtained by subtracting 0.5 from the…

Q: #1 Fifty randomly selected adults who follow professional sports were asked to name their favorite…

A: The question is about frequency distribution Given :   To find : a ) Freq. dist., relative freq.…

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.