4.

20.(A) Meanwhile the volume of their urine was measured regularly. (B) When it comes to the consumption of coffee, one study did find a 41% increase in urine, along with a rise in the excretion of sodium and potassium. (C) Every day people around the globe drink 1.6 billion cups of coffee and around twice as many cups of tea. (D) So although we might notice needing the loo more when we’ve been drinking coffee, the mistake is basing our observations on a comparison with the time we’ve drunk nothing, not with a similar amount of water. (E) But when you look at the studies of more realistic quantities of caffeine, the diuretic effect is not nearly so clear.

1. 求正二十九邊形的對角線共有幾條？　(A) 337　(B)357 　(C)377 　 (D)397 。

2. 已知彩券共2千張，其中獎金金額分別為3萬元、1萬5千元及1千元三種。若獎金3萬元的彩券有2張，1萬5千元的彩券有5張，1千元的彩券有30張，則1張彩券獎金的期望值為多少元？ (A)82 (B)82.5 (C)83 (D)83.5

3. 

5.

6.新生盃歌唱比賽，決賽有三位，其名次由獲得「明日之星」獎章多寡決定。而「明日之星」獎章則由10位評審依其評定頒予，每位評審只有一枚獎章，且規定獎章一定要頒出。請問三位參賽者獲得「明日之星」獎章的數目，有多少種不同的分配情形？ (A)30 (B)66 (C)120 (D)310

7. 若一組數值資料為40、45、50、55、60、65、70、75，則下列何者為真？ (A)中位數為60 (B)第一四分位數Q1 為45 (C)第三四分位數Q3 為65 (D)四分位差 Q3-Q1為20

8. 

9. 已知拋物線的焦點為 (2,-5)，準線方程式為y=-1 ，求此拋物線的正焦弦長。 (A)4 (B)8 (C)12 (D)16

10. 若橢圓的兩焦點為(-2,1) 、(4,1) 且長軸長為 10，求其方程式。