Question

In: Statistics and Probability

Consider the following frequency table representing the distribution of hours students study for an exam in...

Consider the following frequency table representing the distribution of hours students study for an exam in a week. Hours Students Study for an Exam in a Week

Class Frequency

17–27 13

28–38 15

39–49 11

50–60 15

61–71 2

Step 1 of 2:

Determine the cumulative frequency for the fifth class.

Step 2 of 2: Determine the cumulative frequency for the second class.

Expert Solution

Solution :

From given that ,

Step 1 of 2:

Determine the cumulative frequency for the fifth class.

= 13 + 15 + 11 + 15 + 2

= 56

Step 2 of 2: Determine the cumulative frequency for the second class.

= 13 + 15

= 28

orchestra answered 2 years ago

The frequency distribution shown in the following table lists the number of hours per day a...

The frequency distribution shown in the following table lists the number of hours per day a randomly selected sample of teenagers spent watching television. Where possible, determine what percent of the teenagers spent the following number of hours watching television. (Round your answers to one decimal place. If not possible, enter IMPOSSIBLE.) Hours per day Number of Teenagers 0 ≤ x < 1 17 1 ≤ x < 2 31 2 ≤ x < 3 24 3 ≤ x <...

The following frequency table summarizes the number of hours worked by a sample of 120 students...

The following frequency table summarizes the number of hours worked by a sample of 120 students in the same week. Hours worked by students Class (hours) Frequency (0, 10] 10 (10, 20] 60 (20, 30] 40 30 or more 10 Total 120 Show/hide advanced buttonsParagraph stylesBoldItalicUnordered listOrdered listLinkUnlinkInsert or edit imageInsert or edit an audio/video fileRecord audioRecord videoManage files A) How many students worked more than 10 hours but less than or equal to 30 hours? B) What is the...

IV. The following table gives the frequency distribution of the number of hours spent per week...

IV. The following table gives the frequency distribution of the number of hours spent per week on activities that involve sports and/or exercise by a sample of 400 Americans. The numbers are consistent with the summary results from the Bureau of Labor Statistics' American Time Use Survey (www.bls.gov). Hours per Week Number of People 0 to less than 3.5 34 3.5 to less than 7.0 92 7.0 to less than 10.5 55 10.5 to less than 14.0 83 14.0 to...

a) Make a frequency distribution table.Make a frequency distribution table with 6 classes on the following...

a) Make a frequency distribution table.Make a frequency distribution table with 6 classes on the following test scores of 25 students in my class. Include the following columns in the table: Classes, Frequency, Class Mark, Class Boundaries, Relative Frequency and Relative % (make sure you find the class width) 45, 67, 87, 96, 76, 56, 45, 56, 67, 77, 88, 92, 34, 37, 46, 86, 90, 96, 49, 50, 60, 70, 85, 70, 99 b) Use the test scores in...

Estimating a Mean: Consider the frequency distribution for 22 test scores (it was a difficult exam)....

Estimating a Mean: Consider the frequency distribution for 22 test scores (it was a difficult exam). Score Frequency 60 − 64 8 65 − 69 4 70 − 74 2 75 − 79 4 80 − 84 4 (a) The class midpoint for the first class is . (b) The class midpoint for the second class is . (c) Use the frequency table to estimate the mean score. Round your answer to 1 decimal place. x =

. Build a frequency distribution table with five classes on the approved credits of ?? students...

. Build a frequency distribution table with five classes on the approved credits of ?? students (sample) of the Nursing Program: (40 points) 32 34 56 43 31 24 19 24 58 45 68 51 46 30 29 37 63 59 73 21 53 42 32 16 19 66 75 17 48 21 23 19 24 88 70 19 53 12 24 27 NOTE 1: Make a frequency distribution table that has limits, boundaries, class marks or midpoints, absolute frequencies...

Build a frequency distribution table with five classes on the approved credits of ?? students (sample)...

Build a frequency distribution table with five classes on the approved credits of ?? students (sample) of the Nursing Program: (40 points) 32 34 56 43 31 24 19 24 58 45 68 51 46 30 29 37 63 59 73 21 53 42 32 16 19 66 75 17 48 21 23 19 24 88 70 19 53 12 24 27 Draw a frequency polygon to represent the previous data.NOTE 1: Remember that you must use on the x...

Approximate the mean for the data in the following frequency distribution table. Data Frequency 35 -...

Approximate the mean for the data in the following frequency distribution table. Data Frequency 35 - 39 26 40 - 44 10 45 - 49 25 50 - 54 24

Construct a frequency distribution table with five classes on the approved credits of 40 students (sample)...

Construct a frequency distribution table with five classes on the approved credits of 40 students (sample) of the Nursing Program: 32 34 56 43 31 24 19 24 58 45 68 51 46 30 29 37 63 59 73 21 53 42 32 16 19 66 75 17 48 21 23 19 24 88 70 19 53 12 24 27 Make a frequency distribution table that has the limits, borders, class marks or midpoints, frequencies or absolute frequencies, accumulated frequencies,...

Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam...

Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a statistics class. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Lower Bound Upper Bound Frequency 56 _____________64 _________13 65 _____________73 _________9 74 _____________82 _________4 83 _____________91 _________10 92 _____________100 _________6