number 48, I am confused on how to do

Use the histograms shown to answer the question. 47 Number of A Defects Number of B Defects Number of Number of Inspections Inspections F11 Is either histogram symmetric? A) The first is symmetric, but the second is not symmetric. B) Neither is symmetric. C) The second is symmetric, but the first is not symmetric. D) Both are symmetric. Provide an appropriate response. 48) The prizes that can be won in a sweepstakes are listed below together with the chances of winning 48) each one: $3800 (1 chance in 8600); $1700 (1 chance in 5400); $700 (1 chance in 4600); $200 (1 chance in 2600). Find the expected value of the amount won for one entry if the cost of entering is 55 cents. A) $200 B) $0.91 C) $0.44 D) $0.47 Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. 49) Managers rate employees according to job performance and attitude. The results for several random 49) selected employees are given below. Performance 59 | 63 | 65 69 58 | 77 | 76 | 69 | 70 64 Attitude 72 67 78 82 75 87 92 83 87 78 A) y = 92.3- 0.669x B) y = 2.81 + 1.35x C) y= 11.7 + 1.02x D) y=-47.3 + 2.02x Use the given data to find the best predicted value of the response variable. 50) Based on the data from six students, the regression equation relating number of hours of 50) preparation (x) and test score (y) is y = 67.3 + 1.07x. The same data yield r= 0.224 and y = 75.2. What is the best predicted test score for a student who spent4 hours preparing for the test? A) 59.7 B) 71.6 C) 75.2 D) 78.1 Assume that you plan to use a significance level of a = 0.05 to test the claim that p1 = P2, Use the given sample sizes and numbers of successes to find the P-value for the hypothesis test. 51) n1 = 100 n2 = 140 51) X1 = 41 x2 = 35 A) 0.0512 B) 0.0021 C) 0.4211 D) 0.0086 8