Question 1
Eight balls numbered from 1 to 8 are placed in an urn. One ball is selected at random. Find the probability that it is NOT number 2.

87.5% probability that it is NOT number 2.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

Any ball not numbered 2. So 1,3,4,5,6,7,8. So 7 desired outcomes, which means that

Total outcomes:

All balls, which are 8. So

Probability:

87.5% probability that it is NOT number 2.

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.