ANSWER FAST PLS IM1 Unit 1 Standard 1 Homework #4

The shoe size for all the pairs of shoes in a person's closet are recorded below:

7,7,7,7,7,7,7,7,7,7

1) What is the mean? How do you know?

2) What is the standard deviation? How do you know?

Here is another data set:
1,2,3,3,4,4,4,4,5,5, 6, 7

3) What happens to the mean and standard deviation of the data set when the 7 is
changed to a 70? How do you know?

4) For the data set with the value of 70, why would the median be a better choice
for the measure of center than the mean?

5) Looking at the data set below, what effect does eliminating the highest value,
180, from the data set have on the mean, median, and standard deviation?
25, 50, 50, 60, 70, 85, 85, 90, 90, 180

6) A reporter counts the number of times a politician talks about jobs in their
campaign speeches.

PICTURE UPLOADED IS THE LINE PLOT FOR THIS QUESTION!

7) What is a more accurate value for the standard deviation 1.4, 3.1, or 5.6? How do
you know?