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3 years ago

12

A random variable is a function that assigns numerical values to the outcomes of a random experiment. True or false?

1 answer:

Alex787 [66]3 years ago

4 0

Answer:

FALSE

Step-by-step explanation:

A random variable is a variable whose outcome depends on random criteria, such as a lottery game in which any number can be drawn randomly. That way, a randomized experiment will have random results that are not predetermined. For example, if the lottery has 80 numbers, the random variable function can achieve any result, which will depend on random criteria such as the luck of the player.

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Please help in the question it should be if t=-6 when r =-2 its an error

Natasha2012 [34]

Answer:

r = - $\frac{12}{7}$

Step-by-step explanation:

Given that r varies inversely as t , then the equation relating them is

r = $\frac{k}{t}$ ← k is the constant of variation

To find k use the condition t = - 6 when r = - 2, then

- 2 = $\frac{k}{-6}$ ( multiply both sides by - 6 )

12 = k, thus

r = $\frac{12}{t}$ ← equation of variation

when t = - 7, then

r = $\frac{12}{-7}$ = - $\frac{12}{7}$

7 0

3 years ago

What is the slope of the line?

shtirl [24]

Answer:

$m=\frac{1}{3}$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (2, -1)

Point (-4, -3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

Substitute [SF]: $m=\frac{-3+1}{-4-2}$
Add/Subtract: $m=\frac{-2}{-6}$
Simplify: $m=\frac{1}{3}$

4 0

2 years ago

Is 5.8 greater then fifty eight hundreths

Korolek [52]

Answer:

no

Step-by-step explanation:

fifty eight hundreths= 5,800

5.8<5,800

3 0

3 years ago

Read 2 more answers

If f(x) = -5X - 4 and g(x) = -3x - 2, find (f + g)(x).

dmitriy555 [2]

Answer:

(f+g) (x)= -5x-4= (-3x-2)

or, -5x + 3x= -4+2

or, -2x= -2

or,x= 2/2

:. x= 1

Step-by-step explanation:

first we have to make same alphabet and put together if there is subtract if it come in front we should make add and we can get the value of x

5 0

2 years ago

A chemist mixes 4 liters of one acid solution with 10 liters of a 40% solution, resulting in a 30% acid solution. The table show

nasty-shy [4]

The 4-liter acid material was a lower concentration than 40%. Call it 4 liters of x percent acid.

4x+10*40
————— =30
X+10

3 0

3 years ago

Read 2 more answers