STATISTICS: What was the sampling method: simple random, convenience, stratified, cluster, systematic, or voluntary, that was used in the 1998 MMR vaccine and autism study done by Andrew Wakefield?

Give me the equations of two lines that have the same slope but are not parallel.

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

Select the correct answer and solve for y