how to solve the following questions, just answer no explanation.
The following table contains the probability distribution for the number of trafc accidents daily in a small town. Complete parts (a) through (c) below. Number of Accidents P(X = xi) D Daily (X) 0.19 0.27 0.21 0.1 1 0.09 0.08 0.05 OIUI-kcN'D a. Compute the mean number of accidents per day. P 2 (Type an integer or a decimal. Do not round.) b. Compute the standard deviation. 5 = (Type an integer or decimal rounded to three decimal places as needed.) c. What is the probability that there will be at least 2 accidents on a given day? P(x 2 2) = (Type an integer or a decimal. Do not round.) Q A survey of 1,099 adults was asked, "Do you feel overloaded with too much information?" Suppose that the results indicated that of 549 males, 236 answered yes' Of 550 females, 274 answered yes. Construct a contingency table to evaluate the probabili 5. Complete pans (a) through (d). a. What is the probability that a respondent chosen at random indicates that he/she feels overloaded with too much information? (Round to three decimal places as needed) b. What is the probability that a respondent chosen at random is a female and indicates that he/she feels overloaded with too much information? (Round to three decimal places as needed) c. What is the probability that a respondent chosen at random is a female or who feels overloaded with too much information? (Round to three decimal places as needed.) d. What is the probability that a respondent chosen at random is a male or a female? (Round to three decimal places as needed) Fitting a straight line to a set of data yields the following prediction line. Complete (a) through (c) below. A Yi = 19 - 0-7Xi a. Interpret the meaning of the Y-intercept, b0. Choose the correct answer below. 0 A. The Y-intercept, b0 =19, implies that for each increase of 1 unit in X, the value on is expected to increase by 19 units. 0 B. The Y-intercept, b0 = - 0.7, implies that when the value of X is 0, the mean value of Y is - 0.7. O C. The Y-intercept, b0 =19, implies that the average value on is 19. O D. The Y-intercept, b0 =19, implies that when the value ofX is 0, the mean value on is 19. b. Interpret the meaning of the slope, b1. Choose the correct answer below. 0 A. The slope, b1 = 0.7, implies that for each increase of 1 unit in X, the value on is expected to increase by 0.7 units. 0 B. The slope, bl = 19, implies that for each increase of 1 unit in X, the value on is expected to increase by 19 units. 0 C. The slope, b1 = -0.7, implies that the average value of Y is - 0.7. O D. The slope, bl = 0.7, implies that for each increase of 1 unit in X, the value of Y is estimated to decrease by 0.7 units. c. Predict the mean value on for X = 6. \\7, = E (Type an integer or a decimal.)
