John has 2456 pennies in his coin collection. he has the same number of pennies in each of 3 boxes. estimate to the nearest hundred the number of pennies in each box.

As a manufacturer of golf equipment, the spalding corporation wants to estimate the proportion of golfers who are left-handed. how many golfers must be surveyed if we want 99% confidence that the sample proportion has a margin of error of 0.025? assume that a previous study suggests that 20% of golfers are left-handed.