Suppose that an operator at work stations completed 980 assemblies over a four shift time period. Actual working times averaged 7 hours per shift. Random observations of this operation indicated that this operator was working on component A 40% of the time, component B 25% of the time, and component C the remainder. What is the normal time required for each component's assembly based upon these observations

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

answer:

step-by-step explanation:

ddd

step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w