Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Our platform connects you with professionals ready to provide precise answers to all your questions in various areas of expertise. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

What is the point estimate for the number of cars sold per week for a sample consisting of the following weeks: 1, 3, [tex][tex]$5, 7, 10, 13, 14, 17, 19, 21$[/tex][/tex]?

A. 48
B. 522
C. 638
D. 6.1


Sagot :

To determine the point estimate for the number of cars sold per week for a given sample, we need to calculate the mean (average) number of cars sold.

Given the sample data: [tex]\(1, 3, 5, 7, 10, 13, 14, 17, 19, 21\)[/tex]

1. Sum the numbers in the sample:
[tex]\(1 + 3 + 5 + 7 + 10 + 13 + 14 + 17 + 19 + 21 = 110\)[/tex]

2. Count the number of observations in the sample:
There are 10 observations in the sample.

3. Calculate the mean by dividing the sum of the observations by the number of observations:
[tex]\[ \text{Mean} = \frac{110}{10} = 11 \][/tex]

Therefore, the point estimate for the number of cars sold per week is [tex]\(11\)[/tex].

The correct answer is not listed in the provided options (A, B, C, D).

However, based on the detailed calculation, the correct point estimate is:

11