Question

dima asked her seventh - period class how many times they attended a summer camp since first grade. she put her data in the table and used the shaded rows to find three sample means.
summer camp attendance
3 1 0 4 1
4 2 3 0 5
0 1 1 2 0
4 1 4 4 2
3 2 0 1 4
what is the range of the values for the sample means?
○ 1
○ 1.2
○ 1.8
○ 2

Explanation:

Step1: Calculate 1st sample mean

Sum values: $3+1+0+4+1=9$; Mean: $\frac{9}{5}=1.8$

Step2: Calculate 2nd sample mean

Sum values: $0+1+1+2+0=4$; Mean: $\frac{4}{5}=0.8$

Step3: Calculate 3rd sample mean

Sum values: $3+2+0+1+4=10$; Mean: $\frac{10}{5}=2$

Step4: Find range of sample means

Range = Max - Min = $2 - 0.8 = 1.2$

Answer:

1.2