在一次数学考试中,随机抽取100名同学的成绩作为一个样本,其成绩的分布情况如下:
则该样本中成绩在(80,100]内的频率是( )
A.0.15
B.0.23
C.0.08
D.0.67
0 92127 92135 92141 92145 92151 92153 92157 92163 92165 92171 92177 92181 92183 92187 92193 92195 92201 92205 92207 92211 92213 92217 92219 92221 92222 92223 92225 92226 92227 92229 92231 92235 92237 92241 92243 92247 92253 92255 92261 92265 92267 92271 92277 92283 92285 92291 92295 92297 92303 92307 92313 92321 266669
| 成绩 | (40,50] | (50,60] | (60,70] | (70,80] | (80,90] | (90,100] |
| 人数分布 | 9 | 18 | 23 | 27 | 15 | 8 |
A.0.15
B.0.23
C.0.08
D.0.67