3. {14 marks} A. gardener plants Z tomato seeds. The le tomato . txt lists the heights of the seedlings after 3 weeks. a. f 2 marks} Create a histogram of the tomato heights. Be sure to choose the number of bins such that the histogram shows the main features of the data. {1 marks} Describe the skewness (or symmetry} of your histogram. {1 mark} Does your histogram suggest that any of the heights are unusual? Explain. {I mark} What is the approximate sample mode of the heights?I {3 marks} Create a hoxplot of the heights. How would you interpret the 3 horizontal lines in the box for someone who has never taken a statistics course? {2 marks} Compute the interquartiie range of the heights. Do you expect this value to be sensitive to outliers"? Explain. g. [2 marks} Compute the sample standard deviation of the heights. Do you expect this value to be sensitive to outliers? Explain. h. {2 marks} Compute the range of the heights. Do you expect this value to be sensitive to outliers? Explain. sonar 1'": 4. {4 marks} A group of researchers is studying the levels of cortisol [a hormone that reflects stress} in a population of women. They have recorded the measurements on 64 women on the logarithmic scale. i.e.. Jr:- is the logarithm of the cortisol level of the i\"It woman, t' = 1, ,64