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 box contains 5 red balls, 3 blue balls, and 2 yellow balls. If a ball is chosen randomly and then replaced before a second ball is chosen, what is the probability of choosing a red ball followed by a yellow ball? a) Jan-15 b) 1-Oct c) 1-Jun d) 2-Sep Since the first ball is replaced, there are still 10 balls to choose from for the second draw. The probability of choosing a red ball on the first draw is 5/10, and the probability of choosing a yellow ball on the second draw is 2/10. The probability of both events happening is (5/10) x (2/10) = 1/10. 2 / 5 2. 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. 3 / 5 3. A school has 200 students: 100 boys and 100 girls. If 60% of the boys play basketball and 50% of the girls play soccer, how many students do not play either sport? a) 50 b) 80 c) 90 d) 110 The number of boys playing basketball is 0.6 * 100 = 60. The number of girls playing soccer is 0.5 * 100 = 50. Thus, the total number of students participating in sports is 60 + 50 = 110. Subtract this number from the total number of students to find how many students don't play either sport: 200 - 110 = 90. 4 / 5 4. Over the course of a week, the number of text messages received by a student each day was as follows: 20, 15, 30, 25, 15, 35, 50. What is the median of these text messages received? a) 15 b) 20 c) 25 d) 30 The median is the middle value in the ordered list. First, arrange the number of text messages in ascending order: 15, 15, 20, 25, 30, 35, 50. The median is the middle value, which is 25 in this case. 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