A randomly generated list of integers from 0 to 4 is being used to simulate an event, with the numbers 1,2 and 3 representing a success. What is the estimated probability of a success?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.