Rsound answer to two decimal places<br><br>80.75757575757575757575

You take a quiz with 6 multiple choice questions. After you studied your estimated that you would have about an 80 % chance of g

Arada [10]

Answer:

1.15%

Step-by-step explanation:

To get the probability of m independent events you multiply the individual probability of each event. In this case we have m independent events, each one with the same probability, therefore:

$p^{m}$

$0.8^{20} = 1.15\%$

This is a particlar scenario of binomial distribution problem. So the binomial distribution questions are about the number of success of m independent events, where every individual event has the same p probability. In the question we have 20 events and each event has a probability of 80%. The binomial distribution formula is:

$\binom{n}{k} * p^{k} * (1-p)^{n-k}$

n is the number of events

k is the number of success

p is the probability of each individual event

$\binom{n}{k}$ is the binomial coefficient

the binomial coefficient allows to find the subsets of k elements in a set of n elements. In this case there is only one subset possible since the only way to get 20 of 20 correct questions is to getting right all questions (for getting 19 of 20 questions there are many ways, for example getting the first question wrong and all the other questions right, or getting second questions wrong and all the other questions right, etc).

$\binom{n}{k} = \frac{n!}{k!(n-k)!}$

therefore, for this questions we have:

$\frac{20!}{20!(20-20)!} * 0.8^{20} * (1-0.8)^{0} = 1.15\%$

4 0

3 years ago

How would you write the name of a segment differently than the name of a line

xenn [34]

A line segment is represented (written) using letters for the start point and the end point, as in QR: QR is the line segment connecting Q to R. This is the most common case.

Expecially when we're not talking about points on a given line, a line can be refered to by any arbitrary name, such as "line f."

5 0

4 years ago

У

Vikki [24]

Answer:

Jul 25, 2019 — Click here to get an answer to your question ✍️ 3. Simplify 32 • 35 ... 3. Simplify 32 • 35. (4 points) 37 310 97 910. 2. See answers. Log in to ...

2 answers

Step-by-step explanation:

4 0

3 years ago

A box of colored crayons contains 11 distinct colors. In how many ways can 2 colors be chosen, assuming that the order of the co

Oduvanchick [21]

Answer:

55

Step-by-step explanation:

The first crayon is chosen out of 11,so there are 11 choices

11

The second crayon is chosen out of 10 crayons left so there are 10 choices

10

11*10 = 110

But we do not care about the order, so we divide by 2 since there are 2 places

110/2 =55

5 0

3 years ago

Read 2 more answers

Approximately 10% of all people are left-handed. Consider a grouping of ten people.

Stella [2.4K]

If 10% of people are left-handed, and you have 10 people in a group, only 1 of them is going to be left-handed.

5 0

4 years ago

Rsound answer to two decimal places80.75757575757575757575​

Rsound answer to two decimal places80.75757575757575757575