4. A statistics class contains six males and eight females. Three of the females are psychology
majors, while the remaining females are sociology majors. Five of the males are psychology
majors, while the other male is a sociology major.
a.
Make a two-way table of the information.
b. Find the probability of selecting one student at random who is female or a sociology major.
C. Given that the student is a psychology major, find the probability that the student is male.

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west

answer: the actual answer is a. good bank will have the least amount in fees per year.

198 people 1231423156256