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Inessa05 [86]
3 years ago
10

A box contains 10 items, of which 3 are defective and 7are non defective. Two items are randomly selected, one at a time, with r

eplacement, and x is the number of defectives in the sample of two. Explain why x is a binomial random variable
Mathematics
1 answer:
lorasvet [3.4K]3 years ago
6 0
Necessary and sufficient conditions for application of binomial distribution :
1. trial must be Bernoulli, i.e. exactly two outcomes (defective or not defective)
2. number of trails is known and not dependent on outcomes (2).
3. probability of each trial must be known and is constant throughout trials (3/10, with replacement)
4. all trials are random and independent of each other.

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PLS HELP
Umnica [9.8K]
The answer is 60, 60, 120, 120
do you go to rsm for geometry on saturday because i think i know you and this is exactly like the geometry homework 
8 0
3 years ago
PLEASE HELP?! IM SO CONFUSED!!
Andre45 [30]

Answer:

C.

Step-by-step explanation:

-3 7/8 rounds down to -4

4.63 rounds up to 5

-4 x 6 + 5

-24 + 5

-19

her answer (-19.14) also rounds to -19

So yes, it is reasonable and the correct response is C.

5 0
2 years ago
What is the equation of the funcion that is graphed as line b?
dolphi86 [110]

Answer:

The equation for b would be y = 1/2x + 1

Step-by-step explanation:

In order to find this, start by finding two points on the line. We'll use (0,1) and (2, 2). From there we start by finding the slope.

m(slope) = (y2 - y1)/(x2 - x1)

m = (2 - 1)/(2 - 0)

m = 1/2

Now using that, we can plug it, along with a point into point-slope form to get the answer.

y - y1 = m(x - x1)

y - 1 = 1/2(x - 0)

y - 1 = 1/2x

y = 1/2x + 1

8 0
3 years ago
18−5z+6z&gt;3+6<br><br> Solve the inequality.
Mademuasel [1]
18 - 5z + 6z > 3 + 6
         18 + z > 9
       - 18      - 18
                 z > -9

Solution Set: (-9, ∞)
8 0
3 years ago
Complete the series 1.5, 2.3, 3.1, 3.9, whats next
rusak2 [61]

4.7


Each term is 0.8 bigger than the previous one.

4 0
3 years ago
Read 2 more answers
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