Answer: the man's claim is true.
Step-by-step explanation:
Given that 30% of the well find water at a depth <=100 feet
P(X<=100) = 0.30
If the man's prediction work well the probability of finding well at less than 100 or equal should be high fwhen calculated from his results. So give 27 out of 80 wells
P(X<=100) = 27/80
P(X<=100) = 0.3375
Since 0.3375 > 0.3
The man's claim is true.
Answer:
i think 1-2
Step-by-step explanation:
Answer: The ratios are proportional
Step-by-step explanation:
Tony tacos is selling 15 sodas for 10 dollars.
Nicks nachos is selling 30 sodas for 20dollars. The ratio of the number sodas sold by Tony tacos to the number of sodas sold by Nicks nachos is 15/30 = 1/2
The ratio of the cost of sodas sold by Tony tacos to the cost of sodas sold by Nicks nachos is 10/20 = 1/2
So the number of sodas sold is proportional to the cost.
Pemasa tidak akan bermula sehingga setelah proses penyiapan selesai
Answer:
22
Step-by-step explanation:
5(5) - 6(3) + 20(1/4)4(3)(1/4)
25 - 18 + 5*12*0.25
25 - 18 + 60*0.25
25 - 18 + 15
7 + 15
22
