90 85 92 84 81 64 75 90 78 78
82 78 86 86 82 70 76 78 72 93
What is the mean score on this exam? Place your answer, rounded to two decimal places in the blank. For example, 65.78 would be a legitimate entry
14. Accepted characters: numbers, decimal point markers( period or comma), sign indicators(-), spaces( e. g., as thousands separator, 5 000), " E " or " e "( used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.
Complex numbers should be in the form( a + bi) where " a " and " b " need to have explicitly stated values.
For example: { 1 + 1i } is valid whereas { 1 + i } is not. { 0 + 9i } is valid whereas { 9i } is not.
A statistics professor has just given a final examination in his statistical inference course. He is particularly interested in learning how his class of 40 students performed on this exam. The scores are shown below.
77 81 74 77 79 73 80 85 86 73
83 84 81 73 75 91 76 77 95 76
90 85 92 84 81 64 75 90 78 78
82 78 86 86 82 70 76 78 72 93