6. The class interval containing the D, 7. The frequency of the D, class. 8. The class interval containing the P 9. The lower boundary of the P class 90 10. The width of the class interval.
Q: 6. D, D, =. Class Intervals 20-24 8 25-29 8 30-34 11 35-39 8 40-44 45-49 50-54 3.
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Q: Find midpoint for the class. 16.3 - 18.7
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Answer 6-10
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- Provide the missing class intervals and frequencies for the Total Number of Drinks in the Past Month variable. X f A J B K C L D M 26 - 30 N E O F P G…A food company is planning to market a new kind of cereal; however before, they want to find the % of people who will like it. They select a random sample of 500 people and ask them to try the cereal. Of 500, 290 people say they like it. Compute the 95% cofidence interval for the % of the pop. that will like the cereal. Interept this cofidence interval.The inner diameters of washers produced by a company can be measured to the nearest thousandth of an inch. If the class marks of a frequency distribution of these diameters are given in inches by 0.345,0.360, 0.375, 0.390, 0.405, 0.420, and 0.435, find a) the class size b) the class limits c) the class boundaries
- Refer to the accompanying data set and use the 30 screw lengths to construct a frequency Begin with a lower classlimit of 3.720 in., and use a class width of 0.010 in. The screws were labeled as having a length of 3 3 / 4 in. 1 Click on icon to view the data. Complete the frequency distribution below. Length (in.) Frequency 3.720 − − − − − (Type integers or decimals rounded to the nearest thousandth as needed.) 1: Data Table Screw Lengths (inches) 3.765 3.757 3.741 3.755 3.736 3.746 3.756 3.722 3.755 3.758 3.754 3.744 3.743 3.735 3.753 3.755 3.737 3.736 3.741 3.742 3.742 3.766 3.753 3.759 3.748 3.736 3.758 3.751 3.752 3.748is it p=value is suppose to be 0.0401 not 0.0395 to according z-table of -1.75The cmulative frequency of the last class interval will be equal to a) 100 b) none of these c) total frequency-1 d) Total frequency If the values in the data arranged in the ascending order of magnitude, the median is a. The middle item if the number of values is odd b. The average of middle two items if the number of values is odd c. None of these d. The last item if the number of values are odd
- Assume that the professor in a class assigns grades based on the following: A: Scores which are 1.5 or more standard deviations above the mean. B: Scores which are between 0.5 and 1.5 standard deviations above the mean. C: Scores which are between 0.5 standard deviation below the mean and 0.5 standard deviations above the mean. D: Scores which are between 0.5 and 1.5 standard deviations below the mean. F: Scores which are 1.5 or more standard deviations below the mean. The scores in the class are 85, 78, 95, 81, 70, 88, 84, 90, 68, 74. What grade does the person earning the 84 get?Do as indicated. Write in a neat way. 1. Characterized Inferential Statistics by definitionGiven the following frequency table, calculate the mean of X. (Please round your answer to 2 decimal places, ex: 3.12) +-----------------------------------+ | X: 13 14 15 16 17 | |-----------------------------------| | f(X): 1 4 2 1 2 | +-----------------------------------+
- A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant. Over 12 days, he took n=40n=40 measurements (in ppb). His sample data is summarized in the frequency distribution polygon shown below. (PHOTO ATTACHED) QUESTION: How many measurements taken in this time frame were within 35−4035-40 ppb?ans = ?The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 18391183949364838211103952374517039 Complete the table, starting with the lowest class limit. Class Frequency Midpoint Relative Frequency Cumulative FrequencyThe following are the raw score for the 90-item examination in Statistics of the 50 students in 10th Grade. Solve for the: A. Frequency Distribution Table - use 7 classes B. D2 (2nd Decile) - based on the frequency distribution table C. D5 (5th decile) - based on the frequency distribution table D. D7 (7th decile) - based on the frequency distribution table E. D9 (9th decile) - based on the frequency distribution table