Math Quiz -Statistics and Probability Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. Math Quiz -Statistics and Probability Covering: mean, median, mode, range, standard deviation, data interpretation through graphs and charts, and basic probability, including compound events and independent events. 1 / 5 1. A die is rolled twice. What is the probability of getting a sum of 7 from the two rolls? a) 1-Jun b) 1-Dec c) Jan-18 d) 1-Sep There are 6 x 6 = 36 possible outcomes when rolling a die twice. There are 6 outcomes that result in a sum of 7: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1). So, the probability is 6/36 = 1/6. 2 / 5 2. In a class of 12 students, the average test score is 75. If one student has an unusually high score of 100, what is the average of the other 11 students' test scores? a) 70 b) 71 c) 72.7 d) 73 To find the average of the other 11 students' test scores, we need to find the sum of the 11 students' test scores. The sum of all 12 students' test scores is (mean) x n = 75 x 12 = 900. The sum of the 11 students' test scores is 900 - 100 = 800. The average is 800 / 11, which is approximately 72.7. 3 / 5 3. The ages of 4 siblings are 5, 7, 9, and 12. What is the average age of the siblings? a) Aug-25 b) 9 c) 10 d) 12 To find the average age, add up the ages of the siblings and divide by the number of siblings: (5+7+9+12)/4 = 33/4 = 8.25. 4 / 5 4. In a box of chocolates, there are 3 peanut butter chocolates, 5 caramel chocolates, and 2 mint chocolates. If one chocolate is chosen at random, what is the probability that it is a mint chocolate? a) 1/5 b) 1/5 c) 1/3 d) 2/5 The total number of chocolates is 3 + 5 + 2 = 10. There are 2 mint chocolates, so the probability of choosing a mint chocolate is the number of successful outcomes (choosing a mint chocolate) divided by the total number of possible outcomes (choosing any chocolate). So, the probability is 2/10, which can be simplified to 1/5. 5 / 5 5. The scores of five students on a mathematics test are: 80, 84, 91, 75, and 92. What is the median score? a) 80 b) 84 c) 85 d) 91 To find the median, we first arrange the scores in ascending order: 75, 80, 84, 91, 92. The median is the middle value in the ordered list, which is 84 in this case. Your score is 0% Restart Quiz