In a study of a gender selection method used to increase the likelihood of a baby being born a girl, 2086 users of the method gave birth to 1019 boys and 1067 girls. there is about a 15% chance of getting that many girls if the method had no effect.
because there is a 15% chance of getting that many girls by chance, the method( )
a, has statistical significance
b, has parctical significance
c, does not have statistical significane
d, does not have parctical significance

C : does not have statistical significance

Step-by-step explanation:

Because there is a 15% chance of getting that many girls by chance, the method - does not have statistical significance.

By this method, the percentage of girls = or 51.15%

This type of method does not have practical significance.

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step-by-step explanation:

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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.