3 years ago

Which statement IS true

Mathematics

1 answer:

ch4aika [34]3 years ago

3 0

Answer:

Second one(Not sure)

Step-by-step explanation:

I believe the system doesn't have an exact answer. But the line are parallel because of (3).

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3 years ago

Find X such that: 7x + 24x = 25x

Vilka [71]

Answer:

$\boxed{ x = 0}$

Step-by-step explanation:

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In the binomial probability distribution, let the number of trials be n = 4, and let the probability of success be p = 0.3418. U

Lorico [155]

Answer: (a) 0.105 (b) 0.014 (c) 0.119

Step-by-step explanation:

Binomial probability distribution formula :

$P(X=x)= \ ^nC_x p^x(1-p)^{n-x}$ , where x= number of successes, p= probability of success in each trial, n= number of trials.

Given: n= 4 , p= 0.3418

(a)

$P(X=3)=\ ^4C_3(0.3418)^3(1-0.3418)^1\\\\=(4)(0.026282946626)\\\\\approx0.105$

(b)

$P(X=4)=\ ^4C_4(0.3418)^4(1-0.3418)^0\\\\=(1)(0.013648604006)\\\\\approx0.014$

(c)

$P(X= 3\ o\r X=4)= P(X=3) +P(X=4)\\\\=0.105+0.014\\\\=0.119$

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3 years ago