Answer:
y = (1/2)x - 3 Answer A is closest.
Step-by-step explanation:
Two points on the line are (0, -3) and (4, -1). Notice that I've intentionally chosen "nice" points whose coordinates are integers; this makes the math easier. The point (1, -5/2) is also on the line if you want to use it, but the math's a bit more complicated.
Going from (0, -3) to (4, -1), x increases by 4 and y increases by 2. Hence, the slope of this line is m = rise / run = 2/4, or m = 1/2.
The slope-intercept formula for the equation of a straight line is the most convenient to use here, since we can tell immediately from the graph that the y-intercept is (0, -3):
y = (1/2)x - 3
Answer A should be y = (1/2)x - 3 for improved legibility. 1 2 x is not correct as a way to express (1/2)x.
The expected number of defective sample is 0.25
<h3>The probability distribution</h3>
The given parameters are:
- Population, N = 30
- Sample, n = 2
- Selected, x = 4
Start by calculating the defective proportion using:
So, we have:
p = 4/30
p = 0.13
The probability distribution is calculated as:
So, we have:
So, the probability distribution is:
x 0 1 2
P(x) 19/25 23/100 1/100
<h3>The expected number of defective sample</h3>
This is calculated using:
So, we have:
E(x) = 0 * 19/25 + 1 * 23/100 + 2 * 1/100
Evaluate
E(x) = 0.25
Hence, the expected number of defective sample is 0.25
Read more about binomial distribution at:
brainly.com/question/15246027
#SPJ1
Answer:
I Got You 64 is the correct answer.
Step by-step explanation:
7 x 2= 14
5 x 10= 50
50 + 14= 64
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Answer:
16
Step-by-step explanation:
father's age=46
half of father's age=46/2=23
Xiao's age=15
so when Xiao is half of her father age =23-15=8
then add 8 to his sister's age
so 8+8=16
hope its was helpful<3<3
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