Probability and Statistics ellus
Find P (Sophomore|Girl) Hint: P(A and B)
P(B)
Classroom of Students
Boys Girls
Freshman 4 4 8
Sophomore 5 7 12
Junior
3 5
Senior 1 45
12
18
Reduce your fraction to lowest terms.
Enter the number that belongs in the green box.

Which graph represents the following piecewise defined function?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)