The ratio of trombones to trumpets is 9 to 15 or 3 to 5
Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The proportion of total part-time workforce is
The sample size is n = 80
Generally the mean is mathematically represented as
The proportion of not part - time workforce
=>
=>
The standard deviation is mathematically represented as
Now applying the normal approximation,
Then the probability that fewer than 20 people from this sample were between the ages of 25 and 34 is mathematically represented as
Applying continuity correction
Generally
So
From the z-table
The probability is
Slope of the line is -0.5
Step-by-step explanation:
- Step 1: Find the slope of the line using the equation
m = (y2 - y1)/(x2 - x1); Here x1 = -6, y1 = 1, x2 = 4 and y2 = -4
⇒ m = (-4 - 1)/(4 - -6)
= -5/10 = -1/2 = -0.5
8 because 4^2 is equal to 16 and the half of 16 is 8
The base is (-5, -2) so the first graph is correct.