在对25个数据进行整理的频数分布表中,各组频数之和等于______.
共有25个数所,由于频数之和等于数据总数,故频数之和为25.
故本题答案为:25.
Class is beginning. Please stop_ .
A. talking B. to talk C. talk
EMILIA ROMAGNA艾米丽亚