Answer:
B. you can check the second one
46 + 176 = 222 males
254 + 364 = 518
Which is total of 740 people.
The probability of being male is 0.3
46 + 254 = 300 that bring lunch
176 + 264 = 440 that buy their lunch
P(male | buy lunch ) = 0.4
Answer D
In classical mechanics, the three base dimensions are length which is already given in the question, mass and time. Mass refers to the amount of substance present and this is usually expressed in g, kg, lbs, and others. Time is the measured moments that have passed from different events and usually expressed in seconds.
