Question

find the mean of 141 ,147 ,150 ,151 ,152,153,153,153,153,153,154,155 ,155,156,157,157,158,158,159,164,147 ​

Answer 1

Step-by-step explanation:

fi. xi. fi × xi

141 = 1 141

147 = 2 294

150 = 1. 150

151 =. 1 151

152 = 1. 152

153 = 5. 765

154 = 1 154

155 = 2. 310

156 = 1. 156

157 = 2. 314

158 = 2. 316

159 = 1. 159

164 = 1 164

Total. N = 21. (+ fixi) = 3226

$3226 \: \div \: 21$

Mean

$= 153.619048$