Question

B 271 Final Exam Part 1 BQ 271 Final Exam Part 1 6 Seved 0 You skipped this question in the previous attempt Exercise 2-18 Algo Consider the following frequency distribution: 1000 up to 1100 1100 up to 1200 1200 up to 1300 1300 up to 1400 13 14 16 15 2.85 points a-1. Construct the relative frequency distribution. (Round your answers to 4 decimal places.) Relative Frequency Class 1000 up to 1100 1100 up to 1200 1200 up to 1300 1300 up to 1400 a-2. What percent of the observations are at least 1300 but less than 1400? (Round your answer to 2 decin Percent of observations < Prev 80( 35 Next> 20 FI

Answer 1

Total frequency = 13 + 14 + 16 + 15 = 58

a-1)

class                                           relative frequency

1000 up to 1100                            13/58 = 0.2241

1100 up to 1200                            14/58 = 0.2414

1200 up to 1300                            16/58 = 0.2759

1300 up to 1400                            15/58 = 0.2586

a-2) P(at least 1300 but less than 1400) = P(1300 up to 1400) = 0.2586 = 25.86%

b-1)

class                                           cumulative frequency                 cumulative relative frequency

1000 up to 1100                                       13                                              13/58 = 0.2241

1100 up to 1200                                 13 + 14 = 27                                    27/58 = 0.4655

1200 up to 1300                                 27 + 16 = 43                                    43/58 = 0.7414

1300 up to 1400                                 43 + 15 = 58                                    58/58 = 1

b-2) number of observations less than 1100 = 13