Which statement about statistical analysis is false?

Option 3rd is the false statement.

Step-by-step explanation:

Statistical analysis is based on studies that are carried out by including planning, designing, collecting data, analyzing and reporting of the research findings.

So, option 3rd seems to be the wrong or false statement.

Observational studies can determine cause and effect relationships.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm