Answer:
D. 2.7
Step-by-step explanation:
Given
Required
Estimate the standard deviation
Since, the given data has incomplete parameters, we can apply the range rule to estimate the standard deviation;
This is done as follows;
In this case:
So:
<em>From the list of given option, the closest to 2.375 is 2.7;</em>
<em>Hence, the best estimate is 2.7</em>
The answer to the question
Answer:
m=47 n=52
Step-by-step explanation:
Answer:
y = - x +
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = ((- 2, 3) and (x₂, y₂ ) = (4, 1)
m = = = - , thus
y = - x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 2, 3), then
3 = + c ⇒ c = 3 - =
y = - x + ← equation of line