GWD25
Q6
A string of 10 lightbulbs is wired in such a way that if
any individual lightbulb fails, the entire string fails. If for
each individual lightbulb the probability of failing during
time period T id 0.06, what is the probability that the
string of lightbulbs will fail during time period T?
A.0.06
B.(0.06)^10
C.1-(0.06)^10
D.(0.94)^10
﹡ E.1-(0.94)^10
這題題目看不大懂...
GWD27
Q31:
A certain quantity is measured on two different scales, the R-scale and the
S-scale, that are related linearly. Measurements on the R-scale of 6 and 24
correspond to measurements on the S-scale of 30 and 60, respectively. What
measurement on the R-scale corresponds to a measurement of 100 on the S-scale?
A. 20
B. 36
﹡C. 48
D. 60
E. 84
我算D...不知道是不是我算錯了...
麻煩幫我解答一下...謝謝!!
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 59.115.3.153