将容量为100的样本数据,按由小到大排列分成8个组,如下表:
0 54658 54666 54672 54676 54682 54684 54688 54694 54696 54702 54708 54712 54714 54718 54724 54726 54732 54736 54738 54742 54744 54748 54750 54752 54753 54754 54756 54757 54758 54760 54762 54766 54768 54772 54774 54778 54784 54786 54792 54796 54798 54802 54808 54814 54816 54822 54826 54828 54834 54838 54844 54852 266669
组 号 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
频 数 | 10 | 13 | 14 | 14 | 15 | 13 | 12 | 9 |
则第3组的频率和累积频率为( )
A.0.14和0.37 B.
和
C.0.03和0.06 D.
和![]()