What is your conclusion (interpretation) from frequency distribution tables and graphs for the students?
Q: For a qualitative data set, what is a a. frequency distribution?b. relative-frequency distribution?
A:
Q: or the following frequency distribution of quiz scores, how many individuals took the quiz?
A: Given data, how many individuals took the quiz?
Q: The ages of the students in a statistics class are listed below. If the 18 year old student has a…
A: Given Information: Ages: 14, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18
Q: What is the median of the distribution table below Delivery of Instruction Frequency Pure Online 20…
A: The table shows the frequencies of the delivery of instruction.
Q: What is the mean for the following scores? Scores: 4, 6, 14
A: For a set random variable X of size n, the mean is defined as x̅ = ΣX/n.
Q: What is the arithmetic mean of the data set: 4, 5, 0, 10, 8, and 3?
A: Arithmetic mean: x=∑xn
Q: Place the following scores in a frequency distribution table, based on the frequency what is the…
A: There are total 18 observations.
Q: The median for the given set of six ordered data values is 29.5. 5 12 25 _ 41 50 What is the missing…
A: The median of six ordered data values is 29.5 Number of observations (n) = 6 The data values are 5,…
Q: What is the mean for the population of scores shown in the frequency distribution table? x Y 5…
A: From the provided data we have,
Q: 1. Suppose you asked a sample of 12 correctional officers for the number of serious injuries they…
A:
Q: Explain frequency distribution?
A: Frequency distribution Frequency distribution is the table which shows the list of numbers given in…
Q: Construct a frequency distribution table for the following set of scores. Scores: 3, 2, 3, 2, 4,…
A: The scores are: 3, 2, 3, 2, 4, 1, 3, 3, 5
Q: What is the mean for the following sample of scores? Scores: 2, 4, 5, 9
A:
Q: How do you construct a frequency distribution.
A: Frequency distribution is a tabular or graphical representation of the frequency of individual data…
Q: 6. After calculating the relative frequencies for a frequency distribution, what should the sum of…
A: Since you have posted multiple questions, as per our guidelines we have provided answer for first…
Q: What is the range of a distribution?
A: RANGE:The range of a distribution is difference between the lowest and highest values of the…
Q: Among fatal plane crashes that occurred during the past 50 years, 314 were due to pilot error, 68…
A: The provided information is: Cause Frequency Pilot error 314 Other human error 68 Weather…
Q: (a) Demonstrate how the four measures of central tendency can be compared to each other.
A: a) Measures of central tendency values give us an idea about the distribution in the central part of…
Q: Consider the data set ( 11, 8, 8, 10, 8 , 10 , 7, 9 ) . Add 4 to each observation . What is the…
A: Given the data set ( 11, 8, 8, 10, 8 , 10 , 7, 9 ) . Adding 4 to each observation we get…
Q: i believe its the explanation What is the sum of all frequencies in a frequency distribution
A: the sum of all frequencies in a frequency distribution is a cumulative distribution function .
Q: What is the median for the population of scores shown in the frequency distribution table? 3. O 15 O…
A: Solution: x(1) Frequency (f)(2) cf(5) 1 2 2 2 4 6 3 3 9 4 2 11 5 1 12 --- --- ---…
Q: Refer to the following students score data: Score 11-14 15-18 19-22 23-26 27-30 31-34 35-38…
A: Given data; Scores(Class) Frequency (f) Mid value (x) f⋅x 11-14 4 12.5 50 15-18 7 16.5…
Q: What is the mean of the geometric distribution given by
A: It is given that, X is a geometric variate with its pmf, P(x)=3-x = P(x)=(1/3)x ; x=0,1,2,.... We…
Q: Based on the boxplot above, which one tends to be higher: median or the mean? Explain.
A: It is known that, for positively skewed distribution the mean of a set of observation is greater…
Q: Explain the term "deviation scores"?
A:
Q: What is the mode and median in this data set?
A: Let X denote the number of own children in the household The given frequency distribution table is,…
Q: How is the goal of descriptive statistics served by putting scores in a frequency distribution?
A: It is an important part of statistics . It is widely used .
Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…
A: No, Sample Mean is not the most frequent Occuring Value. Mean= Sum of Observations / No.of…
Q: x Y 5 1 4 1 3 2 2 3 1 4
A: The median is the middle number is an ordered set of data. Add 1, 1, 2, 3 and 4 is the values of Y.…
Q: If you have the following data, which measure of central tendency (Mean or Median) will be suitable?…
A: Given data in increasing order is shown below 10 20 20 30 30 30 30 40 40 50 90 120
Q: When the median is computed for a sample, all values in the data set are * .used True O False O
A: Answer - True
Q: What is the sum of all frequencies in a frequency distribution?
A: Frequency distribution is the overview of all distinct variable/classes and the number the times it…
Q: The number of students in the tutoring center was recorded for 52 randomly selected times. The data…
A:
Q: Suppose that a histogram is constructed for the frequency distribution shown below.
A: Histogram is used to measure the spread of the data set. It used to visualize the continuous data…
Q: Suppose the distribution for monthly rental prices for a one-bedroom apartment in a large city is…
A: Right skewed distribution : A Right skewed distribution is also known as positively skewed…
Q: find an example of when statistics were misused/skewed and state the reason why you think the…
A: when statistics were misused/skewed: Misuse can also result from mistakes of analysis that result in…
Q: The following data points represent the number of points scored by each player on the Nemco…
A:
Q: In your own word, explain what is inferential statistics with relevant examples.
A: When we take a sample from the population and try to infer the properties and parameters of…
Q: What is the level of significance?
A: It is given that the sample size n is 15.
Q: What is the median for the following set of scores? Scores: 1, 3, 4, 6, 7, 8, 12, 23
A:
Q: Which statistic (mean, median, or mode) is most appropriate in each of the following situations?
A: Given data Which statistic (mean , median , mode ) is most appropriate in each of the…
Q: If the median of a data set is 134 and the mean is 177, which of the following is most likely?
A: Note: Hi there! Thank you for posting the question. As your question has some missing information…
Q: Construct a frequency distribution table for the following set of scores. Include columns for…
A: Frequency means, how many times a unit is repeated. If the number 2 is repeated 4 times, then we…
Q: from the letters of the word STATISTICS?
A: Given the letters of the word STATISTICS
Q: 20 2 24 2 28 4 32 36 10
A: The given frequency distribution table is, The value of cf is calculated as,
Q: The rise of online streaming services such as Netflix and HBO Go has dramatically altered the media…
A: The null and alternative hypothesis H0: There is no association between age and method of watching…
What is your conclusion (interpretation) from frequency distribution tables and graphs for the
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- Population Genetics In the study of population genetics, an important measure of inbreeding is the proportion of homozygous genotypesthat is, instances in which the two alleles carried at a particular site on an individuals chromosomes are both the same. For population in which blood-related individual mate, them is a higher than expected frequency of homozygous individuals. Examples of such populations include endangered or rare species, selectively bred breeds, and isolated populations. in general. the frequency of homozygous children from mating of blood-related parents is greater than that for children from unrelated parents Measured over a large number of generations, the proportion of heterozygous genotypesthat is, nonhomozygous genotypeschanges by a constant factor 1 from generation to generation. The factor 1 is a number between 0 and 1. If 1=0.75, for example then the proportion of heterozygous individuals in the population decreases by 25 in each generation In this case, after 10 generations, the proportion of heterozygous individuals in the population decreases by 94.37, since 0.7510=0.0563, or 5.63. In other words, 94.37 of the population is homozygous. For specific types of matings, the proportion of heterozygous genotypes can be related to that of previous generations and is found from an equation. For mating between siblings 1 can be determined as the largest value of for which 2=12+14. This equation comes from carefully accounting for the genotypes for the present generation the 2 term in terms of those previous two generations represented by for the parents generation and by the constant term of the grandparents generation. a Find both solutions to the quadratic equation above and identify which is 1 use a horizontal span of 1 to 1 in this exercise and the following exercise. b After 5 generations, what proportion of the population will be homozygous? c After 20 generations, what proportion of the population will be homozygous?Cardiovascular DiseaseSuppose the incidence rate of myocardial infarction (MI)was 5 per 1000 among 45- to 54-year-old men in 2000.To look at changes in incidence over time, 5000 men in thisage group were followed for 1 year starting in 2010. Fifteennew cases of MI were found.Suppose that 25% of patients with MI in 2000 died within24 hours. This proportion is called the 24-hour case-fatalityrate.7.14 Of the 15 new MI cases in the preceding study,5 died within 24 hours. Test whether the 24-hour casefatality rate changed from 2000 to 2010.Cardiovascular DiseaseSuppose the incidence rate of myocardial infarction (MI)was 5 per 1000 among 45- to 54-year-old men in 2000.To look at changes in incidence over time, 5000 men in thisage group were followed for 1 year starting in 2010. Fifteennew cases of MI were found. Suppose that 25% of patients with MI in 2000 died within24 hours. This proportion is called the 24-hour case-fatalityrate.7.14 Of the 15 new MI cases in the preceding study,5 died within 24 hours. Test whether the 24-hour casefatality rate changed from 2000 to 2010.
- Cardiovascular DiseaseSuppose the incidence rate of myocardial infarction (MI) was 5 per 1000 among 45-to 54-year-old men in 2000. To look at changes in incidence over time, 5000 men in this age group were followed for 1 year starting in 2010. Fifteen new cases of MI were found. Suppose that 25% of patients with MI in 2000 died within 24 hours. This proportion is called the 24-hour case-fatality rate. 7.14 Of the 15 new MI cases in the preceding study, 5 died within 24 hours. Test whether the 24-hour casefatality rate changed from 2000 to 2010. 7.15 Suppose we eventually plan to accumulate 50 MI cases during the period 2010–2015. Assume that the 24-hour case-fatality rate is truly 20% during this period. How much power would such a study have in distinguishing between case-fatality rates in 2000 and 2010–2015 if a two-sided test with significance level .05 is planned? 7.16 How large a sample is needed in Problem 7.15 to achieve 90% power?Accounting procedures allow a business to evaluate its inventory costs based on two methods: LIFO (last in first out) or FIFO (first in first out). A manufacturer evaluated its finished goods inventory (in $000s) for five products with the LIFO and FIFO methods. To analyze the difference, they computed FIFO − LIFO for each product. We would like to determine if the LIFO method results in a lower cost of inventory than the FIFO method. The company wishes to test this hypothesis at the 0.05 level of significance. Product FIFO (F) LIFO (L) 1 225 221 2 121 103 3 100 117 4 215 204 5 253 248 What is the value of the test statistic? Multiple Choice +0.717 ±2.560 +0.25 +1.916Homogeneity occurs when occurs when there is not variability in a sample there is a nonlinear relationship between the X and Y scores. the variability between the populations of interest are the same occurs when there is no variability in a population
- Attack rate for influenza by age andtreatment group age QIV group Control group 3-4 3.78% 5.69% 5-8 1.70% 0.15% Suppose that 80% of 3–4-year-old children and 70% of 5–8-year-old children in a village are vaccinated with QIV vaccine. Also assume that children who are not vaccinated have twice the incidence of influenza as the control group in Table. What % of 3–4-year-old children in the village will get influenza? (Hint: Use the law of total probability. P(B)=P(B|A1) x P(A1) + P(B|A2) x P(A2) ) What % of 5–8-year-old children in the village will get influenza? (Hint: Use the law of total probability. P(B)=P(B|A1) x P(A1) + P(B|A2) x P(A2) )(A) An outbreak of certain illness was attributed to ice creams produced at a certain factory. Scientists measured the level of the illness causing factor in 10 randomly sampled batches of ice cream. The levels were: 0.583, 0.242, 0.129, 0.691, 0.231, 0.693, 0.619, 0.392, 0.418. What is the estimated interval of population mean at 0.05 level of significance? Chosse closest possible answer." 0.2809 to 0.4074 0.2709 to 0.7064 0.1289 to 0.6074 0.2809 to 0.6074 0.2109 to 0.5074 what is the correct option? (B); A population comprises of 9 people. Their IQ scores were recorded as 95, 135, 70,85,90,100,100, 110 and 115.What is the X value for a probability of 63.31% from left tail? Chosse closest possible answer. a.110.23 b.23 c.106.00 d.92.00 e.67Salary ($) | Number of Employees 18000 - 20999 | 4 21000 - 23999 | 16 24000 - 26999 | 14 27000 - 29999 | 7 30000 - 32999 | 3 33000 - 35999 | 0 36000 - 38999 | 0 39000 - 41999 | 0 42000 - 44999 | 2 45000 - 47999 | 0 48000 - 50999 | 1 Calculate the median salary to the nearest dollar. Calculate the mean salary to the nearest dollar. Calculate the modal salary to the nearest dollar. Calculate the standard deviation of the salaries to the nearest whole number.