Question

the mark scored by 5 students in a 50 mark test are 20,25,30,35,40 find the standard deviation ​

Answer 1

Answer:

Answer:20+25+30+35+40 = 145 = 9℅

50 50

per student avarage 9% marks solved so esay

Mark as brainlist answer

Answer 2

Now, we know that σ = √∆x²/n

→ σ = √250/5

→ σ = √50

→ σ = 7.07