For the data set 7 ,5,10,11,12

Answer:
Standard deviation =2.6
Step-by-step explanation:
Using the formula given
S = √((1/n-1)∑(x-x⁻)²)
n = 5
∑(x-x⁻)² = 34
Therefore;
s = √(1/5(34)
= √6.8
= 2.6
The standard deviation will be 2.6
Answer: 2.9 just did it on apex 6/8/2019
Step-by-step explanation: