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kompoz [17]
3 years ago
12

Let x denote the number of defective light bulbs in a randomly selected 20-count box from a local hardware store. The variable x

has the following probability distribution:
x 0 1 2
P(X) 0.28 0.37 0.22 0.08 0.05
Calculate and interpret ox
A. 0.22; if we were to select many boxes of bulbs randomly, we would expect about 0.22, on average, to contain defective bulbs
B• 1.25, if we were to select many boxes of bulbs randomly, we would expect about 1.25, on average, to contain defective bulbs
C.0.28; if we were to select many boxes of bulbs randomly, we would expect about 0.28 to have no defects
D.1.099, if we were to select many boxes of bulbs randomly, the number of defective bulbs would typically vary about 1.099 from the mean
1.208; if we were to select many boxes Bulbs randomly, the number of defective bulbs would typically vary about 1.208 from the mean
Mathematics
1 answer:
Molodets [167]3 years ago
8 0

Answer:

B

Step-by-step explanation:

because it make the most sense

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A moving company charges $0.06
adoni [48]

Answer:

i do not get it sir can you explain more please

Step-by-step explanation:

5 0
3 years ago
How does the function g(x)= - (x - 1) compare to the parent function f(x) = x ?
grandymaker [24]
Reflection across x axis and move 1 unit to the right
3 0
3 years ago
What function was used to make that pattern​
Semenov [28]

Answer:

B

Step-by-step explanation:

The differences in the terms of f(x) are + 3, + 5, + 7

Since the differences are not constant the relationship is not linear

Note the differences in the differences are + 2, + 2,

The second differences are constant indicating a quadratic relationship

Note the relationship between x and f(x)

x = 1 → 1² = 1 ← require to add 5, that is 1 + 5 = 6 ← value of f(x)

x = 2 → 2²  = 4 ← require to add 5, that is 4 + 5 = 9 ← value of f(x)

x = 3 → 3² = 9 ← require to add 5, that is 9 + 5 = 14 ← value of f(x)

x = 4 → 4² = 16 ← require to add 5, that is 16 + 5 = 21 ← value of f(x)

Thus f(x) = x² + 5 → B

3 0
3 years ago
Write an equation in slope-intercept form for the line that passes through (4,-3) and is parallel to the line described by y=1/2
Marat540 [252]

Given:

The point, (4, -3)

The line,

y=\frac{1}{2}x+5

To find an equation in slope-intercept form for the line that passes through (4,-3) and is parallel to the given line:

The slope of the line is,

m=\frac{1}{2}

Since the given line is parallel to the new line, so the slope will be same for the both.

Using the point-slope formula,

y-y_1=m(x-x_1)

Substitute the point and slope we get,

\begin{gathered} y-(-3)=\frac{1}{2}(x-4) \\ y+3=\frac{1}{2}x-2 \\ y=\frac{1}{2}x-2-3 \\ y=\frac{1}{2}x-5 \end{gathered}

Hence, the equation in slope-intercept form for the line is,

y=\frac{1}{2}x-5

8 0
1 year ago
??? Anyone I need help
Schach [20]

Answer b

Because -2-5 adds -5 to it equals -7

If you have any questions about answer just ask

And please give brainliest

4 0
3 years ago
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