Statistics & Probability
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Q. For the data set: 5, 7, 8, 9, 10, what is the standard deviation?
Q. If a card is drawn from a standard deck of 52 cards, what is the probability that it is a heart?
Q. If a die is rolled, what is the probability of rolling a number greater than 4?
Q. If a student guesses on a multiple-choice test with 4 options for each question, what is the probability of guessing the correct answer?
Q. If a student guesses on a multiple-choice test with 4 options per question, what is the probability of guessing the correct answer?
Q. If a student is selected at random from a group of 20 students, 12 of whom are boys, what is the probability that the student is a boy?
Q. If a student is selected at random from a group of 20 students, 12 of whom are boys, what is the probability that the student is a girl?
Q. If a student is selected at random from a group of 20 students, 8 of whom are girls, what is the probability that the selected student is a boy?
Q. If a student is selected at random from a group of 20 students, where 12 are girls and 8 are boys, what is the probability that the selected student is a boy?
Q. If a student is selected at random from a group of 20 students, where 8 are girls, what is the probability that the selected student is a boy?
Q. If the data set has a mean of 30 and a median of 25, what does this indicate?
Q. If the data set has a mean of 30 and a standard deviation of 10, what is the z-score of a value 40?
Q. If the data set has a mean of 30 and a standard deviation of 10, what is the z-score of the value 40?
Q. If the data set has a mean of 30 and a variance of 16, what is the standard deviation?
Q. If the data set has a mean of 50 and a median of 45, what can be said about the data distribution?
Q. If the data set has a mean of 50 and a standard deviation of 10, what is the z-score of the value 70?
Q. If the data set has a mean of 50 and a variance of 16, what is the standard deviation?
Q. If the data set is 1, 2, 2, 3, 4, 4, 4, 5, what is the mode?
Q. If the data set is 4, 4, 4, 5, 5, 6, what is the mode?
Q. If the data set is {5, 7, 7, 8, 10}, what is the mode?
Q. If the data set is {5, 7, 8, 9, 10}, what is the interquartile range?
Q. If the data set is {5, 7, 8, 9, 10}, what is the standard deviation?
Q. If the data set is: 3, 7, 7, 19, what is the median?
Q. If the data set is: 5, 7, 8, 9, 10, what is the median?
Q. If the data set {1, 2, 3, 4, 5} is transformed to {2, 3, 4, 5, 6}, what happens to the standard deviation?
Q. If the data set {10, 20, 30, 40, 50} is transformed to {x + 5}, what happens to the standard deviation?
Q. If the data set {3, 7, 8, 12, 14} has a median of 8, what is the first quartile?
Q. If the data set {3, 7, 8, 12, 14} is given, what is the median?
Q. If the data set {5, 7, 8, 9, 10} has a mean of 7.8, what is the sum of the deviations from the mean?
Q. If the following numbers are arranged in ascending order: 3, 7, 8, 12, 14, what is the range?
