Pregunta
upstudy study bank question image url

When comparing the means and medians of skewed data, which of the following is correct? (1 point) The mean is always greater than the median. The mean and median are sometimes the same. The mean and median are always the same. The mean and median are never the same.

Ask by Adkins Bates. in the United States
Feb 03,2025

Solución de tutoría real

Respuesta verificada por el tutor

Responder

The mean and median are sometimes the same.

Solución

To determine the correct statement regarding the means and medians of skewed data, let's analyze the properties of skewed distributions: 1. **Skewed Data**: In a skewed distribution, the data is not symmetrically distributed. It can be skewed to the left (negatively skewed) or skewed to the right (positively skewed). 2. **Mean vs. Median**: - In a **negatively skewed** distribution (left-skewed), the mean is typically less than the median. - In a **positively skewed** distribution (right-skewed), the mean is typically greater than the median. 3. **Comparison**: - The mean and median can be the same in a perfectly symmetrical distribution, but in skewed distributions, they are generally not equal. - Therefore, the mean and median are not always the same, nor are they always different. Based on this analysis, the correct statement is: - **The mean is always greater than the median.** (This is only true for positively skewed data.) - **The mean and median are sometimes the same.** (This is true for symmetrical data, not skewed.) - **The mean and median are always the same.** (This is false for skewed data.) - **The mean and median are never the same.** (This is also false for symmetrical data.) Thus, the most accurate statement regarding skewed data is: **The mean and median are sometimes the same.** However, if we strictly consider skewed data, the best choice would be that the mean is not equal to the median, but the options provided do not reflect that accurately. Therefore, the answer is nuanced based on the context of skewness.

Revisado y aprobado por el equipo de tutoría de UpStudy

error msg
Explicar
Simplifique esta solución

Mind Expander

In skewed data, the mean is influenced by extreme values and tends to be pulled in the direction of the skew. For instance, in a right-skewed distribution, the mean will be greater than the median, and in a left-skewed distribution, it will be less than the median. Thus, the mean can indeed differ significantly from the median depending on the distribution's shape! To prevent confusion while interpreting skewed data, it’s vital to visualize the distribution using graphs like histograms or box plots. This helps to grasp the extent of the skewness and understand how the mean and median relate to each other. Remember, in skewed datasets, the median usually provides a better measure of central tendency!

preguntas relacionadas

Latest Statistics Questions

¡Prueba Premium ahora!
¡Prueba Premium y hazle a Thoth AI preguntas de matemáticas ilimitadas ahora!
Quizas mas tarde Hazte Premium
Estudiar puede ser una verdadera lucha
¿Por qué no estudiarlo en UpStudy?
Seleccione su plan a continuación
Prima

Puedes disfrutar

Empieza ahora
  • Explicaciones paso a paso
  • Tutores expertos en vivo 24/7
  • Número ilimitado de preguntas
  • Sin interrupciones
  • Acceso completo a Respuesta y Solución
  • Acceso completo al chat de PDF, al chat de UpStudy y al chat de navegación
Básico

Totalmente gratis pero limitado

  • Solución limitada
Bienvenido a ¡Estudia ahora!
Inicie sesión para continuar con el recorrido de Thoth AI Chat
Continuar con correo electrónico
O continuar con
Al hacer clic en "Iniciar sesión", acepta nuestros términos y condiciones. Términos de Uso & Política de privacidad