Question 2 (2 points) Listen The following table is an amended version of a study that examined pregnancies that resulted in the birth of twins. Births were classified as preterm with intervention (induced labour or Caesarian), preterm without procedures, or term/post-term. Researchers also classified the pregnancies by the level of prenatal medical care the mother received (inadequate, adequate, or intensive). Answer the questions based on the amended summaries in the table below Twin Births Preterm Preterm Term or Total (induced or (without post-term Level of Prenatal Care Caesarean) procedure) Intensive 19 m 26 59 Adequate 44 41 66 d Inadequate 10 11 35 56 Total n 66 127 266 From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 by Dr. Michael D. Kogan a) What percentage of these mothers received Intensive medical care during their pregnancies? b) What percentage of these births were term/post-term?b) What percentage of these births were term/post-term? GAME = 47.07% (b) % = 20.47% 0 ma) ;_g; = 47.74% (mg:6 = 22.18% 0 C) a) 25696 = 22.18% (b) % = 47.74% 0 D) a) % = 20.47% (b) g = 47.07% Question 3 (2 points) Listen The following table is an amended version of a study that examined pregnancies that resulted in the birth of twins. Births were classified as preterm with intervention (induced labour or Caesarian), preterm without procedures, or term/post-term. Researchers also classified the pregnancies by the level of prenatal medical care the mother received (inadequate, adequate, or intensive). Answer the questions based on the amended summaries in the table below Twin Births Preterm Preterm Term or Total (induced or (without post-term Prenatal Care Level of Caesarean procedure) Intensive 19 m 26 59 Adequate 44 41 66 d Inadequate 10 11 35 56 Total n 66 127 266 From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 by Dr. Michael D. Kogan a) What percentage of mothers who received Intensive medical care had term/post-term births? b) What percentage of preterm(without procedure) births had mothers who received adequate care?Inadequate 10 11 35 56 Total n 66 127 266 From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 by Dr. Michael D. Kogan a) What percentage of mothers who received Intensive medical care had term/post-term births? b) What percentage of preterm(without procedure) births had mothers who received adequate care? ( A) a)- 59 26 = 47. 07% (b) 66 41 = 62. 12% O B) a) 66 41 = 62. 12% (b) 39 26 = 47. 07% ( c) a) 41 = 15. 41% (b) 26 266 266 = 9.77% O D) a ) 26 266 = 9. 77% (b) 41 266 = 15. 41%Question 4 (2 points) Listen The following table is an amended version of a study that examined pregnancies that resulted in the birth of twins. Births were classified as preterm with intervention (induced labour or Caesarian), preterm without procedures, or term/post-term. Researchers also classified the pregnancies by the level of prenatal medical care the mother received (inadequate, adequate, or intensive). Answer the questions based on the amended summaries in the table below Twin Births Preterm Preterm Term or Total (induced or (without post-term Care Level of Prenatal Caesarean) procedure) Intensive 19 m 26 59 Adequate 44 41 66 d Inadequate 10 11 35 56 Total n 66 127 266 From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 by Dr. Michael D. Kogan If one birth is selected at random among the births in the question above, a) what is the probability that the mother received inadequate level of prenatal care? b) what is the probability that the birth was preterm (without procedure)?If one birth is selected at random among the births in the question above, a) what is the probability that the mother received inadequate level of prenatal care? b) what is the probability that the birth was preterm (without procedure)? ( A) a) 66 56 266 = 24. 81% (b) 266 = 21. 05% ( B) a) 56 11 = 19. 64% (b) 11 66 = 16. 67% O c) a) 66 11 = 16. 67% (b) 56 11 = 19. 64% O D) a ) 56 = 21. 05% (b) 66 = 24. 81% 266 266Question 5 (2 points) Listen The following table is an amended version of a study that examined pregnancies that resulted in the birth of twins. Births were classified as preterm with intervention (induced labour or Caesarian), preterm without procedures, or term/post-term. Researchers also classified the pregnancies by the level of prenatal medical care the mother received (inadequate, adequate, or intensive). Answer the questions based on the amended summaries in the table below Twin Births Preterm Preterm Term or Total (induced or (without post-term Level of Prenatal Care Caesarean) procedure) Intensive 19 m 26 59 Adequate 44 41 66 d Inadequate 10 11 35 56 Total n 66 127 266 From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 by Dr. Michael D. Kogan If one birth is selected among the births in the question above, a) what is the probability that the birth was preterm (without procedure) and term/post-term? b) what is the probability that the mother either received intensive or inadequate level of prenatal care?From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 b Dr. Michael D. K- _an If one birth is selected among the births in the question above, a) what is the probability that the birth was preterm (without procedure) m term/post-term? b) what is the probability that the mother either received intensive m inadequate level of prenatal care? CA a) ggg = 0 7256 (b) ggg = 0.4323 0 B) a) 226- =0 (b) ;;_g = 0.4323 000% = 0.4323 (0% = 0 O D) a) %g = 0. 4323 (b) $16; = 0. 7256 Question 6 (2 points) () Listen The following table is an amended version of a study that examined pregnancies that resulted in the birth of twins. Births were classified as preterm with intervention (induced labour or Caesarian), preterm without procedures, or term/post-term. Researchers also classified the pregnancies by the level of prenatal medical care the mother received (inadequate, adequate, or intensive). Answer the questions based on the amended summaries in the table below Twin Births Preterm Preterm Term or Total (induced or (without post-term Care Level of Prenatal Caesarean) procedure) Intensive 19 m 26 59 Adequate 44 41 66 d Inadequate 10 11 35 56 Total n 66 127 266 From Trends in Twin Births Outcomes and Prenatal Care Utilization in the US, 1981-1997 by Dr. Michael D. Kogan If one birth is selected among the births in the question above, a) what is the probability that the birth was preterm (without procedure) given that the mother received inadequate level of prenatal care? b) what is the probability that the mother received inadequate level of prenatal care given that the birth was preterm (without procedure)?a) what is the probability that the birth was preterm (without procedure) given that the mother received inadequate level of prenatal care? b) what is the probability that the mother received inadequate level of prenatal care given that the birth was preterm (without procedure)? A) a) 11 11 66 = 0. 1667 (b) 56 = 0. 1964 O B ) a ) 11 = 0. 1667 (b) 11 266 = 0. 0414 11 ( c) a) 56 = 0. 1964 (b) 11 266 = 0. 0414 11 ( D) a) 36 = 0. 1964 (b) 11 66 = 0. 1667Question 7 (3 points) all The students in Section 201 of a statistics course had the following mark in a test 15, 22, 20,25, 24 , 18, 21, 26, 20, 10 a) What is the number of data? b) What is the mode? c) What is the median? O A) a) 10 (b) 20 (c) 20 O B) a) 10 (b) 20 (c) 20.5 0 C) a) 10 (b) 20 (c) 20.5 0 D) a) 10 (b) 20.5 (c)20.5 Question 8 (3 points) all The students in Section 201 of 3 statistics course had the following mark in a test 15, 22, 20, 25, 24 , 18, 21, 26, 20, 10 a) What is the mean f? b) What is the standard deviation (5) ? O A) (a) 23.3 (b) 20 O B) a) 20 (b) 23.3 0 C) a) 20 (b) 4.8 O D) (a) 4.8 (b) 20 Question 9 (2 points) ( Listen The mean score and standard deviation of the test scores of students in Section 208 of a statistics course are 25.4 and 3.15 respectively while the mean score and standard deviation of the test scores of students in Section 209 in the course are 22.3 and 5.01 respectively. a) Which section did better on average? b) In which section are students scores more likely similar (consistently similar)? A) (a) Section 208 because of a higher mean of 25.4 (b) Section 208 because of a lower standard deviation of 3.15 B) (a) Section 208 because of a higher mean of 25.4 (b) Section 209 because of a higher standard deviation of 5.01 C) (a) Sectiona) Which section did better on average? b) In which section are students scores more likely similar (consistently similar)? 0 A) (a) Section 208 because of a higher mean of 25.4 (b) Section 208 because of a lower standard deviation of 3.15 O B) (a) Section 208 because of a higher mean of 25.4 (b) Section 209 because of a higher standard deviation of 5.01 O C) (a) Section 209 because of a lower mean of 22.3 (b) Section 208 because of a lower standard deviation of 3.15 O D) (a) Section 209 because of a lower mean of 25.4 (b) Section 209 because of a higher standard deviation of 5.01 Question 10 (2 points) 35 I13) Listen : The mean score and standard deviation of the test scores of students in Section 208 of a statistics course are 25.4 and 4.85 respectively while the mean score and standard deviation of the test scores of students in Section 209 in the course are 22.3 and 4.85 respectively. a) Which section did better on average? b) In which section are students scores less varied ? O A) (a) Section 208 because of a higher mean of 25.4 (b) None of the section is less varied because their standard deviation is the same (s=4.85 for both sections). 0 B) (a) Section 208 because of a higher mean of 25.4 (b) Section 209 is slighty less varied because the coefficient of variation (CV=19.1%) is lower than that of Section 208 with CV of 21.7% O A) (a) Section 208 because of a higher mean of 25.4 (b) None of the section is less varied because their standard deviation is the same (s=4.85 for both sections). 0 B) (a) Section 208 because of a higher mean of 25.4 (b) Section 209 is slighty less varied because the coefficient of variation (CV=19.1%) is lower than that of Section 208 with CV of 21.7% 0 C) (a) Section 209 because of a lower mean of 22.3 (b) Section 209 is slighty less varied because the coefficient of variation (CV=19.1%) is lower than that of Section 208 with CV of 21.7% 0 D) (a) Section 209 because of a lower mean of 25.4 (b) None of the section is less varied because their standard deviation is the same (s=4.85 for both sections). Question 11 (2 points) Listen Using the normal distributation table, find a)P (1. 24