【多选题】She stood motionless at the end of the diving board,her hands at her sides, her heels slightly raised,every muscle anticipating action. 对该句中独立结构的理解正确的有:
【多选题】She stood motionless at the end of the diving board , her hands at her sides, her heels slightly raised,every muscle anticipating action. 对该句中独立结构的理解正确的有:
【多选题】A regression equation Y = a + bX is used to forecast the value of Y for a given value of X. Which of the following increase the reliability of the forecast?
A.
A correlation coefficient numerically close to 1
B.
Working to a higher number of decimal places of accuracy
C.
Forecasting for values of X outside the range of those used in the sample
D.
A large sample is used to calculate the regression equation