CBEST Descriptive Statistics — practice questions
27 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBEST Descriptive Statistics in the app →Which measure of the center is found by adding every value and dividing by how many there are?Which measure of the center is simply the value that appears most often?What name is given to a data set that has two modes?How many values does it take to build a box plot?The first quartile of an ordered data set is the same as which percentile?Which number measures how far the data values sit from their mean?A value that does not fit the rest of the data is called what?Scoring in the 90th percentile on a test means what?The interquartile range measures the spread of which part of the data?A data set has a first quartile of 12 and a third quartile of 30. What is the interquartile range?A box plot runs from a smallest value of 20 to a largest value of 68. What is the range?In a town of 50 people, one earns five million a year and the other 49 each earn thirty thousand. Which measurIn a distribution skewed to the right, how do the three measures of center line up?In a perfectly symmetrical distribution, what is true of the mean and the median?Two shops both average a five minute wait. Shop A has a standard deviation of two minutes and shop B has four.A shop has a mean wait of five minutes and a standard deviation of two minutes. Rosa waits seven minutes. How At the same shop, with a mean wait of five minutes and a standard deviation of two, Binh waits one minute. WheThree students out of a class of 40 scored between 90 and 100 percent. What is the relative frequency for thatIn a stem-and-leaf plot, the number 432 splits into which stem and leaf?A data set has 97 values arranged in order. Which position holds the median?A data set has a first quartile of 20 and a third quartile of 60. A value more than 1.5 interquartile ranges aFor thirteen house prices the first quartile is 308,750 and the third quartile is 649,000. What is the interquFourteen values in order are 1, 1, 2, 2, 4, 6, 6.8, 7.2, 8, 8.3, 9, 10, 10 and 11.5. What is the median?Ten letter counts are 4, 5, 6, 6, 6, 7, 7, 7, 7 and 8. What is the mean?For a set of values the mean is 6.3, the median is 6.5 and the mode is 7. Which way is the distribution skewedA data set has a mean of 5 and a standard deviation of 2. Which value sits 1.5 standard deviations above the mTwenty-nine ages are listed in order. The position for the 70th percentile is 0.70 multiplied by 30. Which pos