## PS-Modern Math/Stats

PS Questions from Modern Math/Stats

Probability that an event A doesn't occur = 1-P(A) where P(A) is the probabiity that A occurs. The probability that the target is hit by the FIRST sho...

Tue, 12 Oct, 2021 at 3:54 PM

The Probability of selecting a fair coin= 64/65 The Probability of getting 6 heads in a row with the fair coin= (1/2)^6= 1/64 The Probability of selecting...

Tue, 12 Oct, 2021 at 3:55 PM

The probability of the faces are proportional to the numbers on them, =>Let the probabilities of faces bearing 1,2,6 be x,2x,......,6x respectively. Sin...

Tue, 12 Oct, 2021 at 3:55 PM

The probability that the second card has the same face value as the first (Implying they both have the same face value) is 3/51, (As irrespective of what va...

Tue, 12 Oct, 2021 at 3:55 PM

The question is of selection as order is NOT important here. Selecting vertices A and B is same as B and A. Number of ways to select two vertices is 8C2 =2...

Tue, 12 Oct, 2021 at 3:56 PM

Number of Men are = 150-70=80 men Number of women who did NOT try the appetizer = 70-30 = 40 women out of 50 people who did NOT try the appetizer. Hence n...

Tue, 12 Oct, 2021 at 3:56 PM

Sale on 8th Feb = 70. With a minimum of 1 sold and different number of refrigerators sold each day, we have the count of refrigerators sold in the 27 days a...

Tue, 12 Oct, 2021 at 3:56 PM

Let Jane sell "a" cookies 96 cents/cookie. Thus total money earned from cookies = a*96 cents Let Jane buy "b" popsicles 30 cents/popsic...

Tue, 12 Oct, 2021 at 3:56 PM

SOLUTION: Its a question that tests on basics of set theory and overlapping sets in particular. Let "x" be the number of people enjoying BOTH sk...

Tue, 12 Oct, 2021 at 3:56 PM

SOLUTION : A NEW OG 2021 QUESTION Its a question testing on your application skills in Overlapping sets(Concept-Set Theory). Seniors taking Calculus (C)= ...

Tue, 12 Oct, 2021 at 3:56 PM