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Prealgebra
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Counting and Probability
Precalculus
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Intermediate Algebra
| Status | Title | Difficulty |
| 1503. Batting Average Probability | Level 3 | |
| 1504. Committee Selection Ways | Level 5 | |
| 1505. Fair Dice Game Payout | Level 4 | |
| 1506. Non Green Light Probability | Level 1 | |
| 1507. Jokers Between Cards | Level 5 | |
| 1508. Expanded Polynomial Expression | Level 2 | |
| 1509. Combination Calculation | Level 2 | |
| 1510. Freshmen Group Probability | Level 5 | |
| 1511. Coefficient of Term | Level 4 | |
| 1512. Dice Difference Probability | Level 2 | |
| 1513. Marble Set Combinations | Level 3 | |
| 1514. Lunch Choices Count | Level 3 | |
| 1515. Winning Probability Percentage | Level 3 | |
| 1516. Unfair Coin Expected Win | Level 3 | |
| 1517. Gender Based Positions | Level 4 | |
| 1518. Digit 8 Occurrence Count | Level 4 | |
| 1519. Three Letter Sequences | Level 5 | |
| 1520. Even Palindromic Integers | Level 3 | |
| 1521. Sum Probability of Bills | Level 5 | |
| 1522. Smith Quadruplets Probability | Level 3 |