Determine the class width of each class.
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Consider the following frequency table representing the distribution of hours students spend on the internet in a week.
Class | Frequency |
---|---|
2–72–7 | 1111 |
8–138–13 | 1515 |
14–1914–19 | 1010 |
20–2520–25 | 1515 |
26–3126–31 | 1212 |
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Determine the class width of each class.
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- A firm reported that its Net Worth in the years 2011-2016 are as follows: Year 2011 -2012 2012 2013 2013 2014 2014 - 2015 2015 - 2016 Net Worth 100 112 120 133 117 ( in lakhs) Draw the frequency polygon for the above dataof This frequency table depicts the average hours spent on social media use for students in PSY201 class. Hours Frequency 4 3.5 3 2.5 2 1.5 1 0.5 0 10 5 5 3 7 16 0 5 3 How many students spent at least 3 hours on social media in PSY201?Given the stem-and-leaf diagram. Answer the following questions: • The total frequency all stems • Observations of the stem that has largest frequency Stem-and-leaf of C1 N - 82 Leaf Unit = 0.10 83 84 1 4 3 33 4 85 3 86 777 87 88 13 456789 24 34 (13) 35 23334556679 89 0233678899 90 0111344456789 0001112256688 22236777 023347 91 22 92 14 93 8. 94 2247 4 95 4 96 15 97 98 8 99 1 100 3 Q3 92.200 Q1 Median 88.575 90.400 a. Total frequency cannot be determined by the present diagram Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O b. Total frequency = 82 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O. Total frequency = 18 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 d. Total frequency = 82 Observations on the largest frequency: 87.4, 87.5, 87.6, 87.7, 87.8, 87.9
- Given the stem-and-leaf diagram. Answer the following questions: • The total frequency all stems • Observations of the stem that has largest frequency Stem-and-leaf of C1 N =- 82 Leaf Unit - 0.10 83 4 84 33 85 3 7 86 87 777 13 456789 24 88 23334556679 0233678899 34 89 (13) 35 90 0111344456789 0001112256688 22236777 023347 91 22 92 14 93 8 94 2247 4 95 4 96 15 2 97 98 8 1 99 1 100 3 Median Q1 88.575 Q3 92.200 90.400 a. Total frequency = 82 Observations on the largest frequency: 87.4, 87.5, 87.6, 87.7, 87.8, 87.9 O b. Total frequency cannot be determined by the present diagram Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O. Total frequency = 18 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 d. Total frequency = 82 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9Given the stem-and-leaf diagram. Answer the following questions: • The total frequency all stems Observations of the stem that has largest frequency Stem-and-leaf of C1 N - 82 Leaf Unit - 0.10 1 4 84 33 4 85 86 777 13 87 456789 24 88 89 23334556679 0233678899 90 0111344456789 0001112256688 22236777 023347 (13) 35 91 22 92 14 93 8 94 2247 95 4 96 97 15 2 2 98 8 1. 99 1 100 3 Q1 88.575 Median Q3 90.400 92.200 a. Total frequency = 18 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 b. Total frequency cannot be determined by the present diagram Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O.Total frequency = 82 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O d. Total frequency = 82 Observations on the largest frequency: 87.4, 87.5, 87.6, 87.7, 87.8, 87.9 34 5 678 9012NM 435 2Find the missing frequency from the following data: Marks Frequency 0-5 10 05-10- 12 10–15 16 15-20 20-25 14 25-30 10 30-35 8
- The ungrouped frequency table below shows the number of students absent in a statistics class in a fall semester. Number of Absent Number of Classes 0 2 1 3 2 5 3 7 4 6 5 4 6 2 Is it possible to recover the raw data from this table? What is the total number of absenteeism recorded in the course that semester? What number of absent students occurred most often? In how many classes were 2 students absent? How many times were no more than 2 students absent? How many times were more than 4 students absent? What proportion of classes were exactly 4 students absent? % Round to two decimal places What proportion of classes were up to 3 students absent? % Round to two decimal places What proportion of classes were more than 3 students absent? % Round to two decimal places Answer all for upvoteIf you don't want upvote then kindly answer 4 5 6Given the stem-and-leaf diagram. Answer the following questions: • The total frequency all stems • Observations of the stem that has largest frequency Stem-and-leaf of C1 N - 82 Leaf Unit - 0.10 1 83 4 33 3 ךרר 456789 23334556679 3 84 85 86 13 87 88 89 4 24 34 0233678899 0111344456789 0001112256688 22236777 023347 2247 (13) 90 35 91 22 14 92 93 94 4 95 4 96 15 2 97 2 98 8 1 99 1 Q1 100 3 Median 03 92.200 88.575 90.400 a. Total frequency = 82 Observations on the largest frequency: 87.4, 87.5, 87.6, 87.7, 87.8, 87.9 b. Total frequency = 18 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O. Total frequency cannot be determined by the present diagram Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 Od. Total frequency = 82 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown to the right. In this table, consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. Age of mother,in years Estimated number of occurrences,in thousands 15 – 20 125,075 20 – 25 312,055 25 – 30 300,458 30 – 35 217,581 35 – 40 131,236 40 – 45 52,335 45 – 50 10,577 What is the lower limit of this class? What is the upper limit of this class? What is the class width? What is the midpoint of this class? Round your answer to one decimal place.
- b) The amount of money earned in a day by Ms. Anne’s craft shop was recorded and displayedin the stem-and-leaf diagram shown below in Exhibit 1.Exhibit 1Stem-and-leaf of Data: Amount of Money earned in a day indollarsLeaf Unit = 10 N = *2 2 595 3 23413 3 55779999(**) 4 000123314 4 5569*** 5 033445 5 77881 6 1(i) What is the range of the distribution? (ii) What are the values of *, ** and ***? (iii) What is the median of the distribution? (iv) Use the stem-and-leaf diagram above to draw a box-and-whisker diagram. (v) Comment on the skewness of the distribution.b) The amount of money earned in a day by Ms. Anne’s craft shop was recorded and displayedin the stem-and-leaf diagram shown below in Exhibit 1.Exhibit 1Stem-and-leaf of Data: Amount of Money earned in a day indollarsLeaf Unit = 10 N = *2 2 595 3 23413 3 55779999(**) 4 000123314 4 5569*** 5 033445 5 77881 6 1 (iv) Use the stem-and-leaf diagram above to draw a box-and-whisker diagram. (v) Comment on the skewness of the distribution.b) The amount of money earned in a day by Ms. Anne’s craft shop was recorded and displayedin the stem-and-leaf diagram shown below in Exhibit 1. Exhibit 1Stem-and-leaf of Data: Amount of Money earned in a day indollarsLeaf Unit = 10 N = *2 2 595 3 23413 3 55779999(**) 4 000123314 4 5569*** 5 033445 5 77881 6 1 (i) What is the range of the distribution? (ii) What are the values of *, ** and ***? (iii) What is the median of the distribution?