DeVry University, Naperville MATH 221 quiz (Latest 2023)
Question 1 2 / 2 pts (CO 4) Consider the following table: Age Group Frequency 18-29 983 30-39 784 40-49 686 50-59 632 60-69 541 70 and over 527 If you created the probability distribution for these data, what would be the probability of 30-39? 0.189 0.237 0.425 0.165 Question 2 2 / 2 pts (CO 4) Consider the following table of hours worked by part-time employees. These employees must work in 5 hour blocks. Weekly hours worked Probability 5 0.06 15 0.61 20 0.18 25 0.15 Find the mean of this variable. 16.80 18.95 17.50 12.20 Question 3 2 / 2 pts (CO 4) Consider the following table: Defects in batch Probability 0 0.21 1 0.28 2 0.30 3 0.09 4 0.08 5 0.04 Find the v
Escuela, estudio y materia
- Institución
- Devry University
- Grado
- Statistics Math 221
Información del documento
- Subido en
- 8 de marzo de 2023
- Número de páginas
- 19
- Escrito en
- 2022/2023
- Tipo
- Examen
- Contiene
- Preguntas y respuestas
Temas
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math 221
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