1.The national average for the verbal portion of the College Boards Scholastic Aptitude Test (SAT) is 507. The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answer the following questions using a bell-shaped distribution and the empirical rule for the verbal test scores. What percentage of students scored between 407 and 507?

2.The national average for the verbal portion of the College Boards Scholastic Aptitude Test (SAT) is 507. The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answer the following questions using a bell-shaped distribution and the empirical rule for the verbal test scores. What percentage of students scored between 307 and 607?

3.The data is tab Dow shows the frequency distribution of price per share for the 30 companies in the Dow Jones Industrial Average. Compute the grouped standard deviation for price per share.

Price Per Share	Frequency
$20 - 29	7
$30 - 39	6
$40 - 49	6
$50 - 59	3
$60 - 69	4
$70 - 79	3
$80 - 89	1

4.Morningstar tracks the total return for a large universe of mutual funds. The data can be found in the Mutual Funds tab. Use the number of funds as weights and compute the weighted average total return.

Typer of Fund	Total Return %	Number of Funds
Domestic Equity	4.65	9,191
International Equity	18.15	2,621
Specialty Stock	11.36	1,419
Hybrid	6.75	2,900