The standard deviation for a set of data is 9.5 the mean is 205 what is the margin of error

The margin of error = 19

Step-by-step explanation:

The formula to calculate the margin of error is

ME = Critical value × Standard deviation

Since, the critical value isn't given and let us assume that the confidence interval is 95%, then the critical value is 1.96

Substituting the values in the formula, we get,

ME = 1.96 × 9.5

ME = 18.62

ME = 19

Thus, the margin of error is 19.

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.