Answer:
The mean will decrease, and the median will stay the same.
Step-by-step explanation:
Khan Academy
Answer:
0.0215
Step-by-step explanation:
The average weekly wage is $400 and the standard deviation is:
$50
The z-score for $250 is given by:
Plug in the values to get:
The z-score of $300 is
The probability of earning less than:
$250 is
P(X<250)=0.0013, we got this by reading -3 under zero on the standard normal distribution table.
Similarly:
P(X<300)=0.0228
P(250<X<300)=0.0228-0.0013=0.0215
Therefore the probability that a workeep makes between 250 and 300 dollars is 2.15%
Answerc and d
Step-by-step explanation:
2+3+5
Answer:
1800 seconds.
Step-by-step explanation:
30 × 60 = 1800
Answer:
1.230 euros
Step-by-step explanation:
De la pregunta anterior se nos dice que:
Yolanda compró un coche por 8.200 euros. Lo ha pagado en tres partes.
Paso 1
Sea el porcentaje de la suma total de dinero = 100%
Primero pagó el 60% del valor del auto, luego el 25% y finalmente el resto.
Dejemos que el resto esté representado por x
Por eso;
Primera parte + Segunda parte + Tercera parte = 100%
60% + 25% + x = 100%
x = 100% - (60% + 25%)
x = 100% - 85%
x = 15%
Paso 2
¿Cuánto pagó Yolanda la última vez?
La última vez = Tercera parte y esto se calcula como:
15% de 8.200 euros
= 15/100 × 8.200 euros
= 1.230 euros
Yolanda pagó 1.230 euros la última vez.