Answer:
15 in
Step-by-step explanation:
(basexheight)/2=area
basex6=45x2
base=45/3
base=15
Answer:
I believe it would be 3 reflection followed by translation.
Step-by-step explanation:
1 meter = 100 cm
To convert meters to cm multiply the given meters ( 0.03) by 100.
0.03 x 100 = 3
The answer would be 3
Answer:
$24.20
Step-by-step explanation:
Multiply and add.
Answer:
the population means are known the population variances are assumed equal but unknown
Step-by-step explanation:
If σ1= σ2 (= σ) but unknown , then the biased pooled or combined estimate of the common variance σ² ( the term common variance means that each population has the same variance ) is given by
Sp²= (n1-1) s1² + (n2-1) s2²/ n1+ n2- 2
So first assumption is correct.
When the population variances are assumed unequal and unknown
If σ1 ≠ σ2 but unknown
we use the sample estimates s1 and s2 to compute the standard error of the difference between the means.
S(x1`- x2`) = √s1²/ n1 + s2²/n2
So this is does not apply here.
