How do you find probability in math?

2 answers:

5 0

Probability is the likelihood or chance of an event occurring. For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail).

zloy xaker [14]3 years ago

3 0

Answer:

Probability is the ratio of number of favorable outcomes to occur to the total number of outcomes.

Step-by-step explanation:

Probability = Number of favorable outcomes / Total number of possible outcomes

For example, You have box of 10 balls. 2 balls are of red color, 3 green color and five white color balls. You are to pick one ball out of the box and the question of probability comes that what are the chances (probability) that the ball you pick out is a green color ball.

Here our formula comes

that is Probability of Green ball = number of green balls / total number of balls

= 3 / 10 = 0.3 probability

and remember that value of probability is always between 0 and 1.

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1368 roses are packed in cartons that each hold 28 roses. How many cartons will be needed to hold all of the roses?

Nitella [24]

Answer:

49 cartons

Step-by-step explanation:

1: we need to find how many cartons the roses will fill so

1368/28 = 48.857 cartons.

2: We can't have .857 of a carton, so we need 49 cartons to hold all the roses.

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3 years ago

Find the x-coordinate of the point on the graph of y=x^2 where the tangent line is parallel to the secant line that cuts the cur

jek_recluse [69]

First find the secant line. The slope of the secant line through $(-1,1)$ (when $x=-1$ ) and $(2,4)$ (when $x=2$ ) is the average rate of change of $y=x^2$ over the interval $[-1,2]$ :

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The tangent line to $y=x^2$ will have a slope determined by the derivative:

$y=x^2\implies y'=2x$

Both the secant and tangent will have the same slope when $2x=1$ , or when $x=\dfrac12$ .