Formula for the Minimum Sample size 
The least biased estimate for p and q is 1/2.
Thus
Answer:
965 km per hour
Step-by-step explanation:
The total distance flown was 193km which was flown at constant speed and took 12 minutes. Dividing 193 by 12 gives us the km per minute
193/12 = 16.0833333
but this isn't the correct answer, this is in km per minute, and the question asked for km per hour. Since there are 60 minutes in an hour, multiply the answer by 60 to calculate how far the plane flew per hour.
16.083333333(60) = 965
48. 20% of 60 euros would be 12 euros. Decreasing it means to subtract, so 60 - 12 = 48
Answer: A
Step-by-step explanation: Because I got it wrong and it said it said it was A
The 3 inside angles of a triangle equal 180.
Add the 3 angles together to equal 180:
X + (5x-20) + 4x = 180
Simplify the left side by adding like terms:
10x-20 = 180
Add 20 to each side:
10x = 200
Divide both sides by 10:
x = 20
Angle A = x = 20
Angle B = 4X = 4(20) = 80
Angle C = 5x-20 = 5(20) -20 = 100-20 = 80
