30. In a frequency distribution the coefficient of skevwness based on quartiles is 0.6. If the sum of the upper and the lower quartiles is 100 and the median is 38, find the value of the upper and lower quartile.

Q: Find the mean of the data summarized in the givenfrequency distributions, X.Class limitsClass middle…

A: Solution: We find mean for given frequency distribution data

Q: In a frequency distribution, the co-efficient of skewness based upon the quartiles in 0.6. If the…

A: Answer: From the given data,

Q: A person has decided to construct a frequency distribution for a set of data containing 60 numbers.…

A: Solution Step 1  Min value = Min = 23 Max value = Max =  68 No. of classes = k =5

Q: a. If a constant c is added to each xi in a sample, yielding yi = xi+ c,how do the sample mean and…

A: The sample mean of a dataset is computed by dividing the sum of the observations ∑x by the total…

Q: II. The following are scores of Grade 7 - Rizal in a 50-item Test in Math. Construct a frequency…

A: Given the scores of 50-item test in Math. Class interval = 6…

Q: Given the ungrouped frequency distribution, find the following statistic: mean. fi 126 75 4 18 T =…

A: We have given,  Xi = 2 , 3 , 4 . Fi = 126 , 75 , 18 . We have to find Mean (xbar) = ?

Q: Fill in the missing relative frequency (%), cumulative frequency, and cumulative relative frequency…

A: Part A: The given data are: Class  frequency (f) Relative frequency (f/N) Cumulative frequency…

Q: 4. Listed are recorded speeds (in mph) of randomly selected cars traveling on a particular section…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: A statistics professor claims that the distribution of final grades from A to F in a particular…

A: Given : grades from A to F in a particular course invariably is in the ratio 1:3:4:1:1 Converting…

Q: (a) If a constant c is added to each r; in a sample, yielding y; = x; + c, how do the sample mean…

A: Given:

Q: The number of passengers on a certain regular weekday bus was counted on each of 60 occasions. For…

A: Given : Data :                   15 6 13 8 9 12 8 11 5 12 7 11 7 11 10 10 7 9 14 10 6 7 9…

Q: Number of absences     Frequency   0 25 1 10 2 10 3 5 4 9 5 12 6 9 7 9 8 4 9 2 10 3 11 2   median =

A: The frequency table is as follows:

Q: What are your conclusion (interpretation) from frequency distribution tables and graphs for the…

A: Given frequency distribution and a table of information about the students.From Frequency…

Q: Find the median for the data items in the given frequency distribution 2 3 4 S Score, x Frequency, f…

A: Given information: x f cumulative frequency 1 3 3 2 6 3+6=9 3 3 9+3=12 4 4 12+4=16 5 3…

Q: A marketing research consultant conducted a survey of 40 persons who used to visit fast-food chains…

A: Given data:…

Q: According to a college​ survey, 22% of all students work full time. Find the mean for the number of…

A: Given information: Percentage of students that work full time = 22% The probability of success, that…

Q: If the first class in the frequency distribution starts at 19 and the class width is 4, then the…

A:

Q: What are the class limits for the third class?   Multiple Choice 75 and up to 78 78 and 80 78…

A: It is given that the first two class midpoints are 73.5" and 76.5".

Q: a) A travel TV hosts claim that backpackers age are varies and the distribution for the travel age…

A: The chi-square goodness of fit test is used to test whether the sample follows the distribution of a…

Q: During a particular week in the first trimester, a tutor recorded, to the nearest hour, the time…

A: We have to answer questions based on grouped frequency table.

Q: 8. For a moderately skewed data, the arithmetic mean is 200, the coefficient of vatiation is 8 and…

A: Solution: 8. From the given information, arithmetic mean is 200, the coefficient of variation is 8…

Q: The frequency distribution for the commission earned (in dollars) by salespeople employed at several…

A:

Q: 21. The frequency distribution representing the number of frequent flier miles accumulated by…

A: Frequency distribution is a recorded series of values with counts of either categorized observation…

Q: Taliba took a survey of 155 recent high school graduates. Using the frequency table of her results…

A: Dear student as per guidelines we solve only first question when multiple unrelated questions are…

Q: * 00 B V> LO R %24 20 Question 38 > The boxplot below shows salaries for Construction workers and…

A: Solution

Q: Refer to the table below that shows the frequency distribution of the heights of 45 SHS students.…

A: We have to fill given table.

Q: Here are histograms of the values taken by three sample statistics in several hundred samples from…

A: Given: Three sample statistics (histogram)

Q: 4. Suppose a new sample is chosen and you got the following estimated OLS line: predicted…

A: It is given that the estimated OLS line is shown below:

Q: asked, 18 of 19 of the students taking Physics are male. a) Create a two-way frequency table for the…

A: Given:      Total number of students =80      No.of females =47    Female students taking biology…

Q: Suppose we are now interested in taking random samples of 800 US adults instead of 150 and…

A: As we know that, Sample proportion is given by, p= X/n Where n is sample size.

Q: 2. The salaries (in millions of dollars) for 31 NFL teams for a specific season are given in this…

A: 2. The frequency distribution for the salaries in class along with frequencies.

Q: 5. Here is the list of grades from a test from a math class: IS ААAАВССССВСВАВАDDBOСССААFFDABВВ Make…

A: 5. The frequency for each category is obtained by counting the number of responses corresponding to…

Q: Find the mean of the frequency distribution, Round to the nearest tenth as needed. Which of the…

A: Given: The frequency distribution is as follows Class interval  Frequency 40-44 1 45-49 6…

Q: The following table gives the frequency distribution of the highest degrees held by 25…

A: Given,

Q: 2- For a semi-symmetric frequency distribution, if the median is equal to 26 and the arithmetic mean…

A: Given: For a semi-symmetric frequency distribution we have, Median = 26 Mean = 24

Q: Suppose that the number of classes and the class width of a certain distribution is 8 and 3.5,…

A: Given,number of classes=8 class width=3.5largest data value=35

Q: (D) If the population has a bell-shape distribution, what proportion of observations are smaller…

A: We have given that,  Let X be a random variable from bell-shape distribution (Normal distribution)…

Q: If the prices of 500 pieces of jewelry (in peso and in centavo) are such lowest is 435.00 and the…

A: In this case, the minimum value is 435 and the maximum value is 95,795. Hence, the range is n =…

Q: Below you are given a sample of ACT scores of 12 college applicants. 22  26  30  24  35  20  23  32…

A: Sort the data in ascending order The median is the center value. After computing the median,…

Q: 2. The number of class intervals in a frequency distribution (or bar chart) will be approximately…

A: Range = Maximum -Minimum

Q: 8. Find the Men, Mode and Median for A) the given frequency distribution table 6. 10 4. 3. 1

A:

Q: he following are the scores obtained by BSP III-C Students on their first quiz in Psychological…

A: a) A simple frequency distribution for the given data

Q: If a population has a mean of 12.8, what is the mean of the sampling distribution? A. less than…

A:

Q: Which of the following may be determined from the height of the bar in a relative frequency…

A: d. The number of observations that fall into that class.

Q: Given class interval 40-44 of a frequency distribution table, what is the class width?   5   24…

A: Given ,class interval is  40-44

Q: 4. Draw a 'less than ogive' for the following frequency distribution Marks No. of Students 0-4 4-8…

A:

Q: Which of the statements correctly describes the relationship between the mean and median in the…

A: The histogram below for the number of servings of fruits per day claimed for 74 seventeen year old…

Q: 6. Below is a frequency distribution. Classes 0-14 4. 15-29 18 30-44 12

A: (a) - Mean deviation :        Mean ˉx∑fx/∑f      =1649/47      =35.0851 Class(1) f(2) Mid value…

Q: Suppose you compile all possible samples of 25 children of preschool age in your school district. If…

A: Sampling distribution of sample mean:A sampling distribution of the sample mean for a given sample…