3T Q11 Finding the mean by creating a table The grouped frequency table shows the numbers of cups of coffee bought per week by a sample of office workers.
Number
of cups
Frequency
(f)
Class
midpoint fx x
(x)
1 to 5
4
6 to 10
7
11 to 15
9
16 to 20
5
Totals
25

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

What is the point slope form of a line with slope -5 that contains point (2,-1)