Find the probability of the indicated event if P(E) = 0.40 and P(F)=0.50. Find P(E or F) if P(E and F) =0.05. P(E or F)= | | (Simplify your answer.)

For the image below, what would you input into the graphing calculator function to find the probability of the shaded region? Z= -0.92 (the z-value in the picture is -0.92)

The equation below estimates the effect of race on the probability of mortgage denial, holding constant the payment-to-income ratio. Pr (deny=1|P/I ratio, black) =(-2.29+2.78P/I ratio +0.71 black) (0.16) (0.46) (0.087) A black mortgage applicant has a P/l ratio of 0.38. What is the predicted probability that his application will be denied? The predicted probability that his application will be denied is%. (Express your response as a percentage and round to two decimal places)

The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find the probability of getting someone who tests negative​, given that he or she did not have the disease.     The individual actually had the disease   Yes No Positive 127 18 Negative 34 121         The probability is approximately enter your response here. ​(Round to three decimal places as​ needed.)

Calculate the relative frequency P(E). You have read 150 of the 500 novels in your home, but your sister Roslyn has read 200, of which only 50 are novels you have read as well. E is the event that a novel has been read by neither you nor your sister. P(E) =

please solve: G and H     ch 5

Find the probability of the indicated event if P(E) = 0.25 and P(F) = 0.35. Find P(E or F) if P(E and F)= 0.20. P(E or F) =| (Simplify your answer.)

What would happen to the variance of test scores if an instructor multiplies each score by 2? a. It increases by 2 points b. it becomes four times as large c. It stays the same d. it will decrease

The time (in minutes) between telephone calls at an insurance claims office has the exponential probability distribution: f(x)=0.50e-0.50x              for x ≥ 0 What is the mean time between telephone calls? What is the probability of 30 seconds or less between telephone calls?  What is the probability of 1 minute or less between telephone calls?  What is the probability of 5 or more minutes without a telephone call?

In the table below x denotes the X-Tract Company’s projected annual profit (in $1,000).  The table also shows the probability of earning that profit.  The negative value indicates a loss.   x f(x)   x = profit   -100 0.01   f(x) = probability -200 0.04       0         100 0.26       200 0.54       300 0.05       400 0.02         14 If we quadruple each value in the profit column above, the new variance of profit will be. a 187,136               b 183,467               c 179,870               d 46,784