Question

Find the area under the standard normal curve to the left of z=−2.8 and to the right of z=2.06. Round your answer to four decimal places, if necessary.

Answer 1

area under the standard normal curve is equal to the probability

P(Z < -2.8) + P(Z > 2.06) = P(Z < -2.8) + (1 - P(Z < 2.06))

                                        = 0.0026 + (1 - 0.9803)

                                        = 0.0223