"when the population standard deviation is unknown, sample size is less than 30, and the population has a normal or near-normal
1 answer:
You might be interested in
Step-by-step explanation:
✲
Remove the unnecessary brackets :
⇢
Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
⇢
⇢
Hope I helped ! ♡
Have a wonderful day / night ! ツ
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer & Step-by-step explanation:
This can be proven with the SAS theorem (side-angle-side)
With a perpendicular bisector, the line it bisects is cut directly in half. This creates two equal sides:
and it creates two 90° angles:
∠∠
And because of the reflexive property of congruence:
Side-Angle-Side.
:Done