Below is the table showing the number of working hours (per week) of 400 students:Number of Hours Frequency  0 -   9  2010 - 19  8020 - 2920030 - 39100What is the relative frequency of students working for 9 hours or less?Group of answer choices0.050.952080

The numbers of hours worked (per week) by 400 statistics students are shown below.  Number of hoursFrequency   0 -   9  20 10 - 19  80 20 - 29200 30 - 39100             The percentage of students working 19 hours or less isGroup of answer choices

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 WeekClass Frequency8–158–158816–2316–234424–3124–31141432–3932–394440–4740–471010Copy DataStep 1 of 2 :  Determine the relative frequency for the third class as a simplified fraction.

Below is the table showing the number of working hours (per week) of 400 students:Number of Hours Frequency  0 -   9  2010 - 19  8020 - 2920030 - 39100What is the class width for this distribution?Group of answer choices10939varies from class to class

The following data show the number of hours worked by 200 statistics students.Number of Hours Frequency0 - 9                4010 - 19            5020 – 29            7030 - 39           40The class width for this distribution is ______Select one:a.9b.10c.40d.0

Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below.Part-time Student Course Loads# of Courses Frequency Relative Frequency Cumulative RelativeFrequency1 25 0.5 2 15 3 Part (a)Fill in the blanks in the table.Part-time Student Course Loads# of Courses Frequency Relative Frequency Cumulative RelativeFrequency1 25 0.5 2 15 3 Part (b)What percent of students take exactly two courses? %Part (c)What percent of students take one or two courses? %