An oil-drilling company knows that it costs $25,000 to sink a test well. if oil is hit, the income for the drilling company will be $825,000. if only natural gas is hit, the income will be $225,000. if nothing is hit, there will be no income. if the probability of hitting oil is 1/40 and if the probability of hitting gas is 1/20, what is the expectation for the drilling company? $

The expectation for the drilling company is $6,875.

Step-by-step explanation:

is the income that is expected in relation to natural gas being hit. There is a 1/20 probability that gas is hit. If gas is hit, the income will be $225,000. So

is the income that is expected in relation to oil being hit. There is a 1/40 probability that oil is hit. If oil is hit, the income will be $825,000. So

25,000 is subtracted from the expectation because it is the cost to sink a test well.

The expectation is:

The expectation for the drilling company is $6,875.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

2 2/3 hours duhh silly

step-by-step explanation: