Q2 a, b, c. Thank you. Jimmy is the education consultant of a tutorial school, which arranges preparatory classes for IELTexamination. He randomly checks the mock examination result of 22 students in the school and the resultsare as follow:7.98.27.85.46.86.87.17.27.98.17.67.85.86.37.77.78.38.34.75.17.36.5(a) Write a report to reflect students' ability in the mock examination. The report needs to include theaverage performance, the median, the standard deviation, the bottom 20% and top 10% performance level.(b) The manager asks if the distribution of the examination result looks like a normal distribution. Answerhis question by reviewing the skewness of the data with detailed calculation.(c) There are 18 students in Alex's class. By using the sampled data as a reference to project the chance anindividual student can get more than 6 marks and assume students' result are independent, calculate theprobability that more than 80% of Alex's students can score higher than 6 marks in the mock examination.

Name: Q2 a, b, c. Thank you. Jimmy is the education consultant of a tutorial
Uploaded: 2024-03-20T06:38:44.000Z
Channel: Bartleby
Description: Q2 a, b, c. Thank you. Jimmy is the education consultant of a tutorial school, which arranges preparatory classes for IELTexamination. He randomly checks the mock examination result of 22 students in the school and the resultsare as follow:7.98.27.85