O Question 15 > Frequency 7 10 13 16 19 data Q Based on the histogram above, what is the class width? Class width = 3 What is the sample size? Sample size =. Question 16 A veterinarian recorded how many kittens were born in each litter. This data is summarized in the histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) 12 10 Frequency 2 3 4 5 6 7 Co - # of kittens a What is the frequency of the litter having at most 5 kittens? ans =O Question 6 The following is the beginning of a frequency table Class Frequency 60 - 69 2 70 - 79 4 Find the upper class boundary for the second given class. What is the class width? 9 What would be the class midpoint of the next class (in other words, if a third class is added after the existing 2)?Question 12 A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant. Over 12 days, he took n = 40 measurements (in ppb). His sample data is summarized in the frequency distribution polygon shown below. O Q 20 25 30 35 40 45 50 55 60 65 70 Arsenic (ppb) How many measurements taken in this time frame were less than 55 ppb? ans =Question 10 > Here is a data set: 32 45 27 43 42 32 30 36 30 32 38 35 37 33 33 27 48 42 43 25 You are examining the data with an expanded stem-and-leaf plot. Here is the start of the plot: 2# | 577 3# | 0022233 3# | 5678 4# 4# What should be entered in the second to last row of this table? ans =