Search found 62 matches
x+43+17+12+3 = 100
x+75 = 100
x = 25
75% of them are delayed which is equalt to 1200
75/100 * x = 1200
x = 1600
25% are on time
25/100 * 1600 = 400
On one side of a coin there is the number 0 and on the other side the number 1. What is the probability that the sum of three coin tosses will be 2? No of ways sum of three coin tosses will be 2 are 3 011 101 110 Probable totals of three coin tosses will be 8 000 111 010 001 100 110 101 011 Probabil...
If two balls are to be choosen from 3 red balls and 2 white balls, what is the probability of picking at least one white ball?
Answer: probability of picking at least one white ball is
1 - (probability of picking only red ball)
1 - ( 3C2/5C2) = 1- (3/10) = 7/10
- by kishore
Sun Dec 28, 2008 8:39 pm
- Forum: Problem Solving
- Topic: What is the probability of picking at least one white ball
- Replies: 4
- Views: 18186
A software program is designed to generate password codes using alphabet from A to J, how many 4-alphabet password codes can the program generate? (please note: the alphabets are not allowed to repeat itself.)? Answer: A to J there are 10 aplhabets. Each password is 4 digits length. Every time you c...
How many ways can 3 pieces of candy given out to 4 kids ?
4C3 = 4!/1! * 3! = 4 ways
A, B, C, D are the Kids and 3 candies can be distributed among them as
Therefore it is 4 ways.
The number of stamps that Kaye and Alberto had were in the ratio 5:3 respectively. After Kaye gave Alberto 10 of her stamps, the ratio of the number Kaye had to the number Alberto had was 7:5. As a result of this gift, Kaye had how many more stamps than Alberto? C) 40 K:A = 5:3 => K = 5x and A = 3x ...
Answer) E = |X|/X If X not equal to Zero, sqrt(X^2)/ X If X = -1 sqrt(X^2)/ X = sqrt ( -1 ^ 2)/ -1 = sqrt(1)/-1 = 1/-1 = -1 If X = 1 sqrt(X^2)/ X = sqrt ( 1 ^ 2)/ 1 = sqrt(1)/1 = 1/1 = 1 So, X can be -1 or + 1 look at the answers if x = -1 => |x|/x = |-1|/-1 = 1/-1 = -1 if x = 1 => |x|/x = |1|/1 = 1...
In Company X, 30 percent of the employees live over ten miles from work and 60 percent of the employees who live over ten miles from work are in car pools. If 40 percent of the employees of Company X are in car pools, what percent of the employees of Company X live ten miles or less from work and ar...
The volume of a box with a square base is 54 cubic centimeters. If the height of the box is twice the width of the base, what is the height, in centimeters? (D) 6 Box is cube volume of cube = L * B * H Since, base of the box is square L = B From question, we know that H = 2 * B If L = B = x => H = 2...
If y > 0, which of the following is equal to sq.48y^3
(A) 4y sq. rt. 3y
sqrt(48 * y^3)
= sqrt(16 * 3 * y ^2 * y)
= sqrt(16) * sqrt(3) * sqrt(y ^2) * sqrt(y)
= 4 * sqrt(3) * y * sqrt(y)
= 4y sqrt(3*y)
Total number of workers = Josua + Jose + 4 = 6
2 people will be interviewed from 6
=> Total outcomes = 6C2
=> Possible outcomes that Josua and Jose are selected = 2C2
Probability = 2C2/6C2 = 1/15