Question

A PE teacher is charting the weight and BMI of her students. The table below shows the measured weight for all of her students for the most current period. What is the mean (arithmetic average) for these students included in this data set?
Measured Weight Number of Students Measured Weight Number of Students Measured Weight Number of Students Measured Weight Number of Students
105
110
112
113
115 1
2
2
3
2 116
117
118
120
121 5
4
7
5
5 125
126
128
130
132 4
5
2
1
3 134
135
140
141
150 1
3
2
2
1
124.40
118.00
123.00
122.67

Answer 1

Answer:

122.67 average

Step-by-step explanation:

Mean = (every value added up)/(# of values)

Mean = (105 + 2(110) + 2(112) + 3(113) + 2(115) + 5(116) + 4(117) + 7(118) + 5(120) + 5(121) + 4(125) + 5(126) + 2(128) + 130 + 3(132) + 134 + 3(135) + 2(140) + 2(141) + 150)/60

= 7360/60

= 122.67

I had trouble understanding the data but I hope I did this right!