Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below. In a poll conducted by a certain research center, 992 adults were called after their telephone numbers were randomly generated by a computer, and 88% were able to correctly identify the president. Which type of sampling did the research center use? O Random sampling Convenience sampling Cluster sampling O Stratified sampling O Systematic samplingHeights of statistics students were obtained by a teacher as part of an experiment conducted for the class. The last digit of those heights are listed below. Construct a frequency distribution with 10 classes. Based on the distribution, do the heights appear to be reported or actually measured? What can be said about the accuracy of the results? 0 0 000000012233455555555556688990 Complete the frequency distribution below. Last digit Frequency Last digit Frequency 5 W N 4 (Type integers or decimals.) Based on the distribution, do the heights appear to be reported or actually measured? O A. The heights appear to be reported because the distribution is uniform. O B. The heights appear to be actually measured because there are disproportionately more Os and 5s. O C. The heights appear to be reported because there are disproportionately more Os and 5s. O D. The heights appear to be actually measured because the distribution is uniform. What can be said about the accuracy of the results? O A. They are likely accurate because they appear to be reported. O B. They are likely not very accurate because they appear to be actually measured. O C. They are likely not very accurate because they appear to be reported. O D. They are likely accurate because they appear to be actually measured.The table below shows the frequency distribution of the rainfall on 52 consecutive Fridays in a certain city. Use the frequency distribution Choose the correct histogram below. to construct a histogram. Do the data appear to have a distribution that is approximately normal? O A. 30- Class Frequency 20- 0 - 0.19 25 0.20 - 0.39 10- 12 0.40 - 0.59 0.0 02 04 0.6 0.8 10 12 1.4 0.60 - 0.79 0.80 - 0.99 O B. 1.00 - 1.19 30- 1.20 - 1.39 20- 10- 0.0 0.2 0.4 0.6 0.8 10 12 14 O C. 30- 20- 10- 0.0 0.2 0.4 0.6 0.8 10 12 Do the data appear to have a distribution that is approximately normal? O A. Yes, it is approximately normal. O B. No, it has no obvious maximum. O C. No, it is not symmetric. O D. No, it is approximately uniform