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2 years ago

What is 4 - 7/4x = 1/2? Solve for x.

Mathematics

2 answers:

tia_tia [17]2 years ago

4 0

When evaluating, you must combine like terms first, so subtract 4 from 1/2 then multiply that number by -7/4, this will give you the value of x.

taurus [48]2 years ago

3 0

Hope this helps good luck

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Assume the random variable X has a binomial distribution with the given probability of obtaining a success. Find the following p

Lubov Fominskaja [6]

Answer:

P(X ≤ 3) = 0.9933.

Step-by-step explanation:

We are given that the random variable X has a binomial distribution with the given probability of obtaining a success

Also, given n = 5, p =0.2.

The above situation can be represented through binomial distribution;

$P(X = r)= \binom{n}{r} \times p^{r} \times (1-p)^{n-r} ;x = 0,1,2,3,.........$

where, n = number of samples (trials) taken = 5

r = number of success = less than equal to 3

p = probability of success which in our question is 0.20.

Let X = A random variable

So, X ~ Binom(n = 5, p = 0.20)

Now, the probability that X is less than and equal to 3 is given by = P(X ≤ 3)

P(X ≤ 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

= $\binom{5}{0} \times 0.20^{0} \times (1-0.20)^{5-0}+\binom{5}{1} \times 0.20^{1} \times (1-0.20)^{5-1}+\binom{5}{2} \times 0.20^{2} \times (1-0.20)^{5-2}+\binom{5}{3} \times 0.20^{3} \times (1-0.20)^{5-3}$

= $1 \times 1 \times 0.80^{5}+5 \times 0.20^{1} \times 0.80^{4}+10 \times 0.20^{2} \times 0.80^{3}+10 \times 0.20^{3} \times 0.80^{2}$

= 0.9933

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2 years ago

Guys where did i go wrong

vlabodo [156]

Answer: when you were born

Step-by-step explanation: life is weird

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1 year ago

Which expression is equivalent to 3(m − 3) + 4? 3m + 1 3m − 5 3m + 13 3m − 3

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$3(m-3)+4=3m-9+4=3m-5$

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3 years ago

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How do i solve 0.97 on a decimal number line?

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It's E because it is closer to 1 than the others and look at all the little lines and think of those as the tenths place
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3 years ago

Ava bought 4 bags of bird seed. Each bag contains 600 grams of seed. How many kilograms of seed did Ava buy in all?

kenny6666 [7]

600 grams = 0.6 kilograms
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2 years ago