This probability distribution shows the typical distribution of pitches thrown to a
batter in a given "at-bat" in a baseball game.
Pitches
1
2
3
4
5
Frequency
15
20
40
15
10
Find the probability that the pitcher will
throw more than 3 pitches to a batter.
Enter your answer as a percent or a decimal.
p = [?]

25% or 0.25

Step-by-step explanation:

P( more than 3 pitches) is the sum of number of 4 and 5 pitches/ the total number of pitches.

The total number of pitches is 100. The sum of number of 4 and 5 is 25 so the probability is

25/100=0.25

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: