Jennifer scored a 70 on her first quiz, 85 on the second, and 77 on the third. she need to score on the 4th to have an AVERAGE of 80 for her quizzes?

93

Step-by-step explanation:

70 + 85 + 77 + 93 = 325

325/4 = 80

She needs to score a 93 if she wants to have a average of 80.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.