ecohelp
09-18-2005, 10:50 AM
2 questions....
1. Suppose that the distribution of annual salaries for sales associates at this store is bell-shaped. Use the empirical rule to calculate the percentage of sales associates with salaries between $30,000 and $35,000.
answer is: approximately 68%
how is that? how do you come up with that answer? I'm lost and confused.
2. A company plans to interview 10 recent graduates for possible employment. The company has 3 positions open. How many groups of 3 can the company select?
answer is: 120
I attempted to us the counting rule for combinations, but I came up with a totally different answer....can someone please go through the step by step process of solving this one please?
1. Suppose that the distribution of annual salaries for sales associates at this store is bell-shaped. Use the empirical rule to calculate the percentage of sales associates with salaries between $30,000 and $35,000.
answer is: approximately 68%
how is that? how do you come up with that answer? I'm lost and confused.
2. A company plans to interview 10 recent graduates for possible employment. The company has 3 positions open. How many groups of 3 can the company select?
answer is: 120
I attempted to us the counting rule for combinations, but I came up with a totally different answer....can someone please go through the step by step process of solving this one please?