A study is run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sample of 9 participants is selec
ted and their total cholesterol levels are measured as follows. 180 220 240 196 175 183 195 140 200 What is the sample mean?A)196B)200C)192.11D)180
1 answer:
Answer:
C) 192.11
Step-by-step explanation:
To find the mean of any group of numbers, you simply add up all the numbers and then divide by how many numbers there are.
Using a calculator or a pencil, add the following:
180 + 220 + 240 + 196 + 175 + 183 + 195 + 140 + 200
= 1,729
The last step is to divide 1,729 by 9:
1,729 ÷ 9 = 192.11
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