The following table gives the scores of 30 students in a mathematics examination. Find the mean and the standard deviation of the distribution of the given data. Round the answers to the nearest hundredth, if necessary.
Hint: Assume that all scores lying within a group interval take the midvalue of that group. __________ __________

Question

The following table gives the scores of 30 students in a mathematics examination.  Find the mean and the standard deviation of the distribution of the given data. Round the answers to the nearest hundredth, if necessary.
Hint: Assume that all scores lying within a group interval take the midvalue of that group.  __________  __________

Quizplus · Accepted Answer

The Answer of The following table gives the scores of 30 students in a mathematics examination.  Find the mean and the standard deviation of the distribution of the given data. Round the answers to the nearest hundredth, if necessary.
Hint: Assume that all scores lying within a group interval take the midvalue of that group.  __________  __________

The Following Table Gives the Scores of 30 Students in a Mathematics