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Leona [35]
3 years ago
15

Approximately 85% of electronic stores marked up the price for a new headset. Suppose a random sample of 12 stores is selected.

a. What is the probability that no fewer than 5 of the workers in the sample marked up the price? b. Find the expected value and its standard deviation.
Mathematics
1 answer:
Leviafan [203]3 years ago
8 0

Answer:djdjdjxbc. D

Step-by-step explanation:

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Please help me I really need help
barxatty [35]

Answer:

im not sure but i think its 0.25

Step-by-step explanation:

6 0
3 years ago
Write these equations in y=mx+b form....
nekit [7.7K]
1. y = -1/2 + 2.
2. y= 2/5x - 4/5

6 0
4 years ago
3<br> ..<br> 4) through: (-2,5), slope<br> 2.
ArbitrLikvidat [17]

Answer:

y - 5 = 2(x + 2)

General Formulas and Concepts:

Point-Slope Form: y - y₁ = m(x - x₁)  

x₁ - x coordinate

y₁ - y coordinate

m - slope

Step-by-step explanation:

<u>Step 1: Define</u>

Slope <em>m</em> = 2

Point (-2, 5)

<u>Step 2: Create equation</u>

y - 5 = 2(x + 2)

8 0
3 years ago
NO LINKS!!<br><br>Solve each equation. Show all work.<br><br>(x - 2)^2 - 64 = 0​
klasskru [66]

(x-2)^2-64=0\\(x-2)^2=64\\x-2=8 \vee x-2=-8\\x=10 \vee x=-6

4 0
2 years ago
Read 2 more answers
El acensor de 8 es 7'?
Inessa05 [86]

Answer:

La planta de la que ha salido el ascensor es: -1(planta del sótano)

Datos:

Subió 8 pisos

Piso final= 7

Explicación:

Para resolver el enunciado, se debe tener en cuenta que:

Piso final - Piso inicial= 8

Reemplazando y despejando:

7-Piso inicial= 8

Piso inicial= 7-8

Piso inicial= -1

Por lo tanto, ha salido de la planta del sótano

Verificando:

Piso inicial +8= piso final

-1+8= Piso final

7= piso final

Profundiza en matemáticas en brainly.lat/tarea/10834640

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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