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1. ### Probability involving permutations and combinations?

1. 2 sevens (out of 4), 3 non-sevens (out of 48) Prob = C(4,2) * C(48,3) / C(52,5) = 2162 / 54145 = 0.0399 = 3.99% 2. Prob = P(10,4) / 10^4 = 63/125 = 0.504 = 50.4% 3. Prob (at least 1 woman) = 1 − Prob (no women) = 1 − Prob...

3 Answers · Science & Mathematics · 13/03/2018

2. ### Can someone tell me how to solve this? I've tried factoring the x out and using the factor theorem, but it doesnt work for me... here it is?

...2, 2, 3 for a, c, e , since the coefficient of x^3 (12) will be given by the ace product And +/-1, +/-2, +/-3 for b, d, f, since the fixed term (-6) will...

3 Answers · Science & Mathematics · 28/01/2018

...40, 1/13 20, 1/13 -10, 11/13 PART B: You can win on an ace (1/13) or a king (1/13) Answer: 2/13 PART C: Multiply...

2 Answers · Science & Mathematics · 09/11/2017

... ---> C(4,2) = 6 2 Queens ---> C(4,2) = 6 1 Ace ---> C(4,1) = 4 6 * 6 * 4 = 144 3. (3/x² − 4x³...

1 Answers · Science & Mathematics · 30/05/2017

5. ### If cards are drawn one at a time from a shuffled deck, with replacement. Find the probability an ace appears before the first face card?

... we threw away all the other cards and just had 4 aces and 12 face cards. We can do this because if we draw any other card we...

1 Answers · Science & Mathematics · 18/02/2017

Both sets of equations are correct. So I assume your problem is with solving. 1) 2L + 2W = 42 Solve for L: 2L = 42 − 2W L = 21 − W Now replace L with...

2 Answers · Science & Mathematics · 10/01/2017

7. ### Very simple math question for you?

You want a total of .. (15.5 +4.5)*3.0 = 60 grade points. You have .. 15.5*2.71 = 42.005 so you need to earn in each credit hour .. (60 -42.005)/4.5 ≈ 3.999 grade points. You must ace every course to get the average you seek.

3 Answers · Science & Mathematics · 07/01/2017

8. ### A hand of 5 cards is dealt. The number of ways that the hand could be made up of 2 Kings, 2 Queens and 1 Ace is? 1) 576 2) 4 3) 144 4) 792?

... the 4 Queens, pick 2. 4C2 = 6 ways From the 4 Aces, pick 1. 4C1 = 4 ways 6 × 6 × 4 = 144 Answer: C...

2 Answers · Science & Mathematics · 04/01/2017

9. ### 4 cards are drawn from a deck of 52 cards. Find the probability that you would have one ten, two queens and a black ace. SHOW ALL YOUR WORk?

... of two queens: C(4, 2) = 6 Combinations of one black ace: C(2, 1) = 2 Combinations of 4 cards drawn form...

1 Answers · Science & Mathematics · 10/11/2016

10. ### HELP!!!!! IM RETARDED AND CAN'T DO STATS?

...39;s see. 40 cards. Probability of 2 aces and 2 10s is: 4/40 * 3/39 * 4/38 * 3/37 * 4*3/2...9/39 * 1/38 * 27/36 * 4*3*2 = somethingorother If the ace CAN be the heart but it's not REQUIRED...

1 Answers · Science & Mathematics · 29/09/2016