Method of Travel to School

Walk/Bike
Bus
Car
Row totals
Under age 15

60

Age 15 and above
65

195
Column totals
152
110
98
360

How many students under age 15 walk/bike to school?

18
50
80
87

What is the correlation coefficient for the data? don't forget to turn the diagnoisticon (in the catalog menu of the calculator). r = answer (round to the nearest thousandth)

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place