All categories

2 years ago

WILL GIVE BRAINLIEST

Mathematics

1 answer:

alexandr1967 [171]2 years ago

3 0

Answer:

I think the answer is 3th one 'cause 6.49×6.49 in the nearst answer .

You might be interested in

A school assembly had 70 students in attendance, and 90% of them were first-graders. How many first-graders were at the assembly

natulia [17]

Answer:

Step-by-step explanation:

Because, 100% of 70 would be 7. Now we have that number lets multiply it by 9 because of 90%. 9 x 7 = 63 first-graders

4 0

1 year ago

Let the probability of success on a Bernoulli trial be 0.26. a. In five Bernoulli trials, what is the probability that there wil

andreyandreev [35.5K]

Answer:

0.3898 = 38.98% probability that there will be 4 failures

Step-by-step explanation:

A sequence of Bernoulli trials forms the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Let the probability of success on a Bernoulli trial be 0.26.

This means that $p = 0.26$

a. In five Bernoulli trials, what is the probability that there will be 4 failures?

Five trials means that $n = 5$

4 failures, so 1 success, and we have to find P(X = 1).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{5,1}.(0.26)^{1}.(0.74)^{4} = 0.3898$

0.3898 = 38.98% probability that there will be 4 failures

4 0

3 years ago

Which situation could be modeled by the expression 3/4 ÷ 2 1/4?

vlabodo [156]

Answer:

$\frac{1}{3}$

Step-by-step explanation:

8 0

3 years ago

What is the answer to the 9s in 9,905,482

Otrada [13]

9 million and 9 hundred thousand

9,000,000
and 900,000

5 0

3 years ago

What property is 8 (m - 4 ) = 8 (m) - 8(4)

Darina [25.2K]

It is the <span>The </span>Distributive property

4 0

3 years ago