All categories

3 years ago

If the probability of p(m and n) =0.2 p(m)=0.4 and m and independent events, what is p(n)?

Mathematics

1 answer:

abruzzese [7]3 years ago

4 0

Answer:

P(n) = 0.5

Step-by-step explanation:

For two events which are independent, we use the multiplication rule which states P (A and B) = P(A) * P(B). Substitute P(m) = 0.4 and P(m and n) = 0.2 into this formula.

P (m and n) = P(m) * P(n)

0.2 = 0.4*P(n)

Divide by 0.4 on both sides.

0.2 / 0.4 = P(n)

0.5 = P(n)

You might be interested in

Write

Schach [20]

Answer:

y+3=4(x-5)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-3)=4(x-5)

y+3=4(x-5)

5 0

3 years ago

PLEASE ANSWER!!!! 60 POINTS!!!!!

SpyIntel [72]

2. Distributive Property

4 is distributed and multiplied inside the parenthesis to x and -5.

4. Subtraction Property of Equality

x is subtracted from both sides of the equation.

4x - x - 22 = x - x + 3

3x - 22 = 3

5. Subtraction Property of Equality

22 is added to both sides of the equation.

3x - 22 + 22 = 3 + 22

3x = 25

6. Division Property of Equality

3 is divided from both sides of the equation.

$\frac{3x}{3}$ = $\frac{25}{3}$

x = $\frac{25}{3}$

7 0

3 years ago

Read 2 more answers

If f(x)=2x^3-6x^2-16x-20f(x)=2x *3 −6x *2−16x−20 and f(5)=0, then find all of the zeros of f(x)f(x) algebraically.

mihalych1998 [28]

The zeros of the cubic function f(x) = 2x³ - 6x² - 16x - 20 are given as follows:

x = 5, x = -1 + i, x = -1 - i.

<h3>How to obtain the solutions to the equation?</h3>

The equation is defined by the rule presented as follows:

f(x) = 2x³ - 6x² - 16x - 20.

One solution for the equation is given as follows:

x = 5.

Because f(5) = 0.

Then (x - 5) is a linear factor of the function f(x), which can be written as follows:

2x³ - 6x² - 16x - 20 = (ax² + bx + c)(x - 5).

This is because the product of a linear function and a quadratic function results in a cubic function.

Now we expand the right side to begin finding the coefficients of the quadratic function that we are going to solve to find the remaining zeros:

2x³ - 6x² - 16x - 20 = = ax³ + (b - 5a)x² + (c - 5b)x - 5c.

Then these coefficients are obtained comparing the left and the right side of the equality as follows:

a = 2.

-5c = -20 -> c = 4.

b = -6 + 5a = 4.

Hence the equation is:

2x² + 4x + 4.

Using a quadratic equation calculator, the remaining zeros are given as follows:

x = -1 + i.

x = -1 - i.

More can be learned about the solutions of an equation at brainly.com/question/25896797

#SPJ1

8 0

11 months ago

What is the value of -2[3-11] divided by 3

faust18 [17]

I need this answer too

5 0

3 years ago

Please help me!!! 10 points and I will count u as brainliest

Lena [83]

Answer:

F or H

Step-by-step explanation:

not J because that is negative, not G because that means none, so either H or F. I'm not going to give you the whole answer but another hint is look at the circles are they circled or non circlircled. I eliminated two answers for you.

remember what your teachers saids: what does it mean for the circlies to be colored or blank.

good luck!

5 0

3 years ago