9+10=19 it’s an addition problem and the sum is 19
Answer:
your answer will be 18 in
Step-by-step explanation:
I hope this helps u ^_^
have a great day
Answer:
5 Days ....thats easy....
Hope this answer is correct ..
Have a nice day ahead
Answer:
option (a) It will be closer to 30 than to 20
Step-by-step explanation:
Data provided in the question:
For sample 1:
n₁ = 10
variance, s₁² = 20
For sample 2:
n₂ = 15
variance, s₂² = 30
Now,
The pooled variance is calculated using the formula,

on substituting the given respective values, we get

or
= 26.0869
Hence,
the pooled variance will be closer to 30 than to 20
Therefore,
The correct answer is option (a) It will be closer to 30 than to 20