2. The average age of a car registered in the Land Transportation Office (LTO) is 10 years, or 120 months. Assume the standard deviation is 20 months. If a random sample of 35 cars is selected , find the probability that the mean of their ages is between 115 and 129 months.

2. The average age of a car registered in the Land Transportation Office (LTO) is 10 years, or 120 months. Assume the standard deviation is 20 months. If a random sample of 35 cars is selected , find the probability that the mean of their ages is between 115 and 129 months.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

2. The average age of a car registered in the Land
Transportation Office (LTO) is 10 years, or 120 months.
Assume the standard deviation is 20 months. If a
random sample of 35 cars is selected , find the
probability that the mean of their ages is between 115
and 129 months.
The
umber of litere of freoh miIL, thet

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