Evaluation of the Engineering Geology Practice Route Based on Multifactor Reliability Analysis

Table 2

Mean and standard deviation of random variables in the questionnaire.

Positive random variable			Negative random variable
Ri (i = 1, 13)	Mean	Standard deviation	Si (i = 1, 13)	Mean	Standard deviation
R1	61.26	4.89	S1	39.79	8.47
R2	60.26	9.38	S2	40.93	11.86
R3	73.82	10.28	S3	27.72	12.27
R4	53.14	14.75	S4	43.56	16.73
R5	79.98	12.55	S5	18.42	10.55
R6	67.20	15.63	S6	33.79	16.17
R7	75.76	13.74	S7	24.43	13.96
R8	74.01	9.18	S8	26.11	9.32
R9	82.04	9.99	S9	18.93	13.78
R10	67.61	11.41	S10	34.66	12.73
R11	81.26	11.42	S11	18.62	12.21
R12	58.08	17.07	S12	43.81	17.94
R13	27.45	12.02	S13	72.93	11.67