A fertilizer manufacture buys a certain raw material by weight. Each batch of raw material purchased is weighed, and the weight is recorded to the nearest pound. It is assumed that the round-off error...

A fertilizer manufacture buys a certain raw material by weight. Each batch of raw material purchased is weighed, and the weight is recorded to the nearest pound. It is assumed that the round-off error is uniformly distributed in the interval from –0.6 to +0.6. Using the above information, calculate the expected value of the distribution.