236. A sample of the number of study hours per week of college students is collected. Some of the sample results of this sur- vey are given in the following table. Study Hours z Score Percentile Rank 4 -2.5 10 -1.75 20 24 34 -0.5 36 0 1.25 1.5 10 25 35 40 By inspection of the table, determine: a) The mean study time for all the students. b) The median study time for all the students. c) The percent of college students who study between 20 and 36 hours per week. I d) The study time representing the 4th decile. e) The study time representing the 1st quartile. f) The study time representing the 3rd quartile. g) The interquartile range 50 42 2.25 75 95

TABLE 2: San Pedro Participant Height (inches) Weight (pounds) 1 66 240 2 72 190 3 61 250 4 44 120 5 65 222 The above tables include data from a sample of city employees in San Pedro. Use the table to answer the following question. What is the mean height? 0 0 = 61.2 x= 61.8 x= 61.6 = 61.6

The following table summarizes the grade point averages (GPAs) of graduatestudents in a statistics class. Approximate the mean GPA of the class.

Some Woodside customers were asked the age of their houses. The table summarizes the results. Age of Home Number of Midpoint (years) Customers 0-8 17 9-17 10 18 26 27 35 4. What are the mean and median of the age of houses? O mean 14 and median 13 O mean 12 and median 22 O mean 13 and median 13 O mean 12 and median 13

The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 4 4 2 5 2 6 3 7 1 8 4 9 2 10 1 The mean score on this test is: IncorrectThe median score on this test is: Show your work

Ms. Lorraine Finch, a fifth grade teacher has a large class of 50 students for the 2018 - 2019 school year. After giving a reading comprehension test, Ms. Finch decided to do a brief statistical analysis. A frequency distribution of the results is presented below. a. Fill in the missing pa rts of Ms. Finch’s frequency distribution. Do any necessary scrap work in the space next to the table. b. Construct a histogram of the frequency distribution.   c Is the distribution of test scores normal? Explain.   Score   Frequency   Relative Frequency 84         2                    0.04 85         5                     0.1 86                                 0.08 87       8                       0.16 88       10                      89        90      5                         0.1 91       4                         0.08 92       3                         0.06

Here is a FDT for a small data set: data freq 25 3 26 4 27 2 28 4 29 7 Find the following measures of central tendency.mean = median = mode =