Answer:
Intervalo de confianza
= (0.294, 0.386)
Step-by-step explanation:
La fórmula para el intervalo de confianza para la proporción se da como
p ± z × √p (1 - p) / n
Donde p = x / n
De donde de la pregunta anterior
x = 136 personas
n = 400 personas
p = 136/400
p = 0.34
z = puntuación z del intervalo de confianza del 95% = 1.96
Por lo tanto,
Intervalo de confianza =
0.34 ± 1.96 × √0.34 (1 - 0.34) / 400
= 0.34 ± 1.96 × √0.34 × 0.66/400
= 0.34 ± 1.96 × √0.000561
= 0.34 ± 1.96 × 0.0236854386
= 0.34 ± 0.0464234596
Intervalo de confianza
= 0.34 - 0.0464234596
= 0.2935765404
= 0.34 + 0.0464234596
= 0.3864234596
Hence:Intervalo de confianza
= (0.294, 0.386)
Answer:
A
Step-by-step explanation:
because you need to reflect to match the shape
A baseball player made six hits in nine innings.
Therefore, his ratio of hits to innings, which means his number of hits relative to the number of innings, is 6:9.
However, this isn't simplified. To simplify a ratio, we must find the GCF (Greatest Common Factor) of the two terms.
The GCF of 6 and 9 is 3, thus, we divide both of the terms by 3 to get our simplified answer.
6:9 = 6/3 : 9/3 = 2:3
Your answer is that the ratio of hits to innings for the baseball player is 2:3. (This can also be expressed as 2/3 or 2 to 3.)
Hope this helps! :)
You line 49.2
×10.3
---------
506.76
