Data & Probability — practice questions, page 14
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QuestionA fair die is thrown once. Find the probability of getting a prime number.QuestionThe mean of 5 numbers is 18. Four of the numbers are 12, 20, 15 and 25. Find the fifth number.QuestionNeha rolls an ordinary die once. What is the probability that the number on top is a multiple of 3?QuestionWhat is the median of the data 7, 3, 9, 12, 5, 10?QuestionA number is chosen at random from 1 to 30. What is the probability that it is a multiple of 3 or…QuestionThe mean of the first five prime numbers is: (answer as a number)QuestionNeha's scores in six tests have a mean of 25. After her seventh test, the mean of all seven scores…QuestionTwenty cards are numbered 1 to 20. One card is picked at random. What is the probability that its…QuestionThe mean of 5 numbers is 18. If the number 12 is removed, find the mean of the remaining 4 numbers.QuestionFind the median of the data: 12, 7, 15, 9, 20, 18, 5.QuestionWhat is the probability of getting a head in a single toss of a fair coin?QuestionFor a grouped frequency distribution, the empirical relationship between mean, median and mode is:QuestionWhat is the mode of the data 2, 3, 3, 4, 5, 3, 6?QuestionA fair die is rolled once. What is the probability of getting an even number?QuestionA die is rolled once. What is the probability of getting an even number?
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