7) You have the following data: 14, 17, 21, 22, 23, 25, 25, 33, 36 You want to create a bootstrap diagram to represent them. Which answer is true from the list below: a) Q1 = 21, Q3= 25 and there is one lower outlier and two upper outliers in the series? b) Q1 = 18, Q3=25 and there is at least one outlier in the series? c) Q1 =3, Q3 = 7 and there are several outliers in the series? d) Q1 = 17, Q3 = 25 and there is exactly one higher outlier in the series? 8) A survey of the number received by a sample of Telephonia subscribers last week found the following information: 52; 43; 30; 38; 30; 42; 12; 47; 39; 37; 34; 46; 32; 18; 41; 21 Calculate the standard deviation of the number of calls in this sample. 9) A survey of the number of calls received by a sample of Telephonia subscribers last week found the following information 52; 43; 30; 38; 30; 42; 12; 47; 39; 37; 34; 46; 32; 18; 41; 32 Calculate the average number of calls in this sample. Note that the data in this question is different from the data in the previous question. 10) A survey of the number of calls received by a sample of Telephonia subscribers last week found the following information: 52; 43; 30; 38; 30; 42; 12; 47; 39; 37; 34; 46; 32; 18; 41; 28 Determine the 7th decile of data in this sample. Note that the data in this question are different from the data in the previous