Please answer the following.

2.

(1 point) The times (in seconds) between fifteen consecutive eruptions of a geyser were as follows 878, 871, 906, 933, 930, 852, 890, 861, 882, 888, 897, 899, 879, 888, 848 By entering the data into R, find the following (giving answers to two decimal places) Part a) The sample mean is 886.8 (sec) Part b) The sample variance is 602.02 (sec?). Part c) The sample median is 888 (sec) Part d) The sample IQR is 28 (sec) Part e) Which of the following is a boxplot of the data? B v 920 D B\fPrevious Problem Problem List Next Problem (1 point) Below are the final scores of 20 introductory statistics students. 79, 83, 57, 82, 94, 83, 72, 74, 73, 71, 66, 89, 78, 81, 78, 81, 88, 69, 77, 79. (a) (b) Score Frequency 5 55 59 A 60 64 65 69 3- -NVIDIA NOF 2- 20 50 70 80 90 100 Total 60 Scores a. What is the mean, rounded to one decimal place? b. What is the standard deviation, rounded to two decimal places? C. What percent of scores fall within 10 points of the mean