- Q_1}$.","points":null},{"id":"ba078248-a389-4245-aee7-dd7dd3d74587","cardType":"cloze","front":"The IQR measures the spread of the [ ] of the data.","back":"The IQR measures the spread of the middle half of the data.","points":null},{"id":"b51db6fb-47e7-4de7-8927-0dd4e719bba7","cardType":"basic","front":"What does a smaller IQR indicate about a data set?","back":"The results are more consistent (less spread out).","points":1},{"id":"54685b0a-5693-4e2b-a95b-581cd563f8be","cardType":"basic","front":"How is the median calculated if there are two middle values?","back":"Find the mean of the two middle values.","points":1},{"id":"c048a709-f45b-4dfb-9046-39eb71d69b52","cardType":"basic","front":"In a set of 11 ordered values, which value is the median?","back":"The 6th value.","points":1},{"id":"fccefc74-3212-4c1e-b02c-7e3228a8f0f8","cardType":"cloze","front":"To find $Q_1$ from 11 ordered values, you find the middle of the [ ] values below the median.","back":"To find $Q_1$ from 11 ordered values, you find the middle of the 5 values below the median.","points":null},{"id":"78466d78-313d-4d62-b71a-ad6ac54f92fa","cardType":"basic","front":"When comparing two groups, what two properties should you comment on?","back":"

The typical score (usually using the median).
The consistency/spread (usually using the IQR).

","points":2},{"id":"3f75e0c7-cbd0-4b66-963b-e896203b963d","cardType":"basic","front":"How do you interpret a higher median when comparing two classes?","back":"The group with the higher median has a higher typical score.","points":1},{"id":"0e97f3ae-758c-4652-96ed-ab979e94dcfe","cardType":"cloze","front":"The formula for the total of a data set is: $\\text{total} = \\text{[...]} \\times \\text{number of values}$.","back":"The formula for the total of a data set is: $\\text{total} = \\boxed{\\text{mean}} \\times \\text{number of values}$.","points":null},{"id":"99b4dd25-a0ce-4987-92ba-14b2136ce381","cardType":"cloze","front":"The formula for the total of a data set is: $\\text{total} = \\text{mean} \\times \\text{[...]}$.","back":"The formula for the total of a data set is: $\\text{total} = \\text{mean} \\times \\boxed{\\text{number of values}}$.","points":null},{"id":"58adbb40-29a1-4983-b355-99ec0a592c31","cardType":"basic","front":"Why can you not simply average two class means to find the combined mean?","back":"Classes may have different numbers of students (different weights).","points":2},{"id":"320cb6dd-103d-4279-b4d7-1b348cb44d1a","cardType":"basic","front":"Outline the steps to find a missing group's mean when given the combined mean and the other group's mean.","back":"

Find the overall total (mean × total n).
Subtract the known group's total.
Divide the remaining total by the missing group's n.

","points":3},{"id":"fdd932e6-339d-454d-add9-9e9adf18dd5a","cardType":"cloze","front":"The highest value in a data set can be found using: $\\text{highest value} = \\text{[...]}$.","back":"The highest value in a data set can be found using: $\\text{highest value} = \\boxed{\\text{lowest value} + \\text{range}}$.","points":null},{"id":"c37dd7f1-2aa5-497b-8376-e9df13b9a160","cardType":"basic","front":"How do you find the range for two groups combined?","back":"Subtract the overall lowest value from the overall highest value across both groups.","points":2},{"id":"07a87859-ca05-4642-8f81-e1e71e1fa5f4","cardType":"basic","front":"Does a larger IQR mean a group performed better? Explain.","back":"No; it only means the scores were more spread out (less consistent).","points":2},{"id":"892adadc-0b39-4f70-942b-041c072ad18e","cardType

Data Flashcards

Data Flashcards

Data Flashcards

Data Flashcards