Answer:I would say that the answer is 700 is the answer is incorrect my apologies.
Step-by-step explanation: Ms.Li spent $840 on vacation, She spent 2/3 of the amount on a train ticket and 1/2 of the remaining amount on food. How much did she spend on ticket and food altogether= 840 2/3 = 560
840-560 = 280
half of 280 = 140
560+140 = 700
I think the greatest possible starting number would be 1,214,449. If it was any higher, like 1,214,450, then the number would round up to 1,214,500, and you don't want that.
Hopefully this helps! Let me know if you have any more questions.
No hay relaion porque su hermana "mona", es su mascota
Answer: Even is not unusual.
Step-by-step explanation:
Given:
P = 0.10
n = 1200
x = 132
1. Sample of proportion ( ˆp ) = x/n
= 132/1200
= 0.11
2. Z = ˆp - p / √p ( 1 - p )/ n
= 0.11 - 0.10 / √0.10 ( 1 - 0.10 ) / 132
= 0.01 / 0.02611
= 0.3829
3. Probability
P ( ≥ 132 ) = P( Z > 1.50 ) = 1 - P( Z > 1.50 )
= 1 - 0.9332
= 0.0668
The probability is higher than (0.05). Which makes the event unusual, therefore there is no enough evidence which suggest that the number of Americans who are afraid to fly has increased.
