Which statement about t-distributions is false?
a) The t-distribution is symmetric.
b) The standard deviation of the t-distribution
approaches as the degrees of freedom
increases.
d) The t-distribution is centered at zero.
C) The t-distribution has a larger standard
deviation than the standard normal
distribution.

After the experience with great britain having a monarchy, the united states realized that everyone needed to have a voice in the government. the fact that americans had no voice was the main reason for the war. thus, they created a democracy, where the people voted for their representatives and the government ruled with the consent of the people.

The answer is 90 % because since 20 multiplied by 5 is 100 you would have to do each question multiplied by 5 so 18 times 5 equals ninety percent.