A math educator is analyzing student performance data from five urban schools. The mean test scores are 78, 82, 85, 76, and 90. She adds a sixth schools score, and the new mean becomes 81. What was the sixth schools test score?

Tue, 05 May 2026 19:54:35 +0000

A math educator is analyzing student performance data from five urban schools. The mean test scores are 78, 82, 85, 76, and 90 — a range reflecting the diverse educational landscapes across U.S. inner-city campuses. Recently, as educators seek clearer patterns in student outcomes, a question has emerged around how to balance existing performance with new data points. Adding a sixth school’s score shifts the average, sparking interest in how this single number carries meaning in broader educational trends. For educators striving to improve outcomes, such analysis isn’t just academic—it’s a practical tool for identifying strengths and gaps. ### Why This Data Matter in Today’s Education Environment Across many U.S. urban school districts, math performance continues to be a focal point for educators, policymakers, and families. With persistent achievement gaps and evolving teaching strategies, data-driven decisions are more critical than ever. A consolidated view of test scores enables educators to assess not only overall trends but also how individual school environments contribute to district-wide outcomes. The addition of one new score—like a sixth school’s average—is more than a calculation; it’s a building block toward informed intervention, resource planning, and targeted support. In a landscape marked by rapid adaptation post-pandemic, timely analysis shapes how teaching practices evolve. ### How the Mean Shifts When Adding a Sixth School’s Score