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Hillsborough Math Homework Hotline teaches mean, median, mode, range and IQR; student wins challenge

April 05, 2025 | Events, Hillsborough, School Districts, Florida


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Hillsborough Math Homework Hotline teaches mean, median, mode, range and IQR; student wins challenge
Hillsborough County Math Homework Hotline hosts Kinella Prado and Lisa Arias spent the episode focused on statistical measures of center and spread, walking viewers and callers through how to use mean, median and mode alongside variation measures such as range and interquartile range (IQR).

The show opened with Lisa Arias announcing the topic: "Tonight's topic is statistical measures." The hosts worked several problems live, explained steps for computing averages and medians, and demonstrated how an outlier can push a mean away from the median.

"Hey diddle diddle, the median's the middle," said Kinella Prado, using a short mnemonic and song to help students remember the definitions: the median as the middle value, the mean as "add and divide for the mean," the mode as the most frequently occurring value and the range as the difference between the maximum and minimum. Prado and Arias walked through classroom examples (five‑number summaries and Q1/Q3 calculations) and contrasted the range with the IQR to show why the median and IQR are preferred when a dataset contains an outlier.

During a live challenge, student caller Nateel (Benito Middle School) answered the prompt about which dataset most likely contained an outlier: dataset K (mean 91, median 65) versus dataset L (mean 77, median 68). Nateel said, "I picked dataset k." The hosts explained that a large gap between mean and median suggests an outlier is pushing the mean away from the central tendency reflected by the median.

Other callers worked practice problems on air. Libby (Walker Elementary) computed an average of 22.5 miles for a sample dataset, and Rocco took part in a sales example that illustrated how removing a $100 outlier reduced both the mean (from about $50.24 to $44.46) and the median (from 45 to 44.75). Prado and Arias repeatedly emphasized method and notation — ordering values to find medians, adding and dividing to find means, and using Q1/Q3 to compute the IQR.

The episode included several short community and classroom spotlights: teacher Miss Ferguson (Williams) and students Avnish and Alice were recognized as recent program winners; sponsors Edgems and Mathnasium provided a student lesson video and local program information (Mathnasium locations cited in Brandon, Brandon West, Carolwood, New Tampa, Riverview, South Tampa and Westchase). Mathnasium representative Julie described a recent family game night and invited families to schedule free assessments at mathnasium.com.

Hosts closed by previewing the next episode on data displays, scheduled for Thursday, April 10. The program distributed prize packages to challenge winners including gift certificates, T‑shirts and classroom plaques presented by the district representative mentioned on air.

Questions and examples covered on air (mean/median/mode/range/IQR) were taught using concrete classroom procedures (ordering numbers, "hello/goodbye" pairing to find medians, and add‑and‑divide for averages). The hosts repeatedly separated explanation from caller claims and did not present any formal decisions or policy actions; the broadcast functioned as instructional community outreach rather than a government meeting.

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