在研究身高与体重的关系时,求得相关指数R2≈( ),可以叙述为“身高解释了64%的体重变化”,而随机误差贡献了剩余的36%,所以,身高对体重的效应比随机误差的效应大得多。
0.64
病变对侧偏身深浅感觉障碍,伴自发性疼痛及感觉过度,其病变部位在()
A.顶叶感觉皮层
B.内囊或基底节区
C.丘脑
D.中脑
E.脑桥
Jillian Best is choosing between two mutual funds. Fund A has a front-end load of 4 percent, a net asset value (NAV) of $60.00, and an expected return of 13.0 percent. Fund B has a redemption fee of 1.5 percent, a NAV of $27, and an expected return of 10 percent. Jillian will invest $ 50000 in either fund. Which of the following statements is most accurate if Jillian has a 6-month holding period The:()
A. investor is better off with the redemption fee fund by $ 592.50.
B. investor is better off with the redemption fee fund by $712.50.
C. investor is better off with the front-end load fund by $120.00.