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3 years ago

Can someone help me do this I'm not good at this kind of math

Mathematics

1 answer:

Finger [1]3 years ago

5 0

hope this helps i did this instead of my ap psych work haha

i didnt rlly check my answers so i hope this are correct <3

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if you flipped a coin 20 times, in percentage how many times do you expect the coin to land on heads, an how many times on tails

djyliett [7]

Answer:

50% head and 50% tails.

Step-by-step explanation:

A coin only has two sides to flip on and is equally probably flip heads or tails. If you flipped the coin 20 times you could expect to flip 10 heads and 10 tails.

8 0

3 years ago

Please help! I’ve tried every site and nothing has helped The answer is 11.8

melamori03 [73]

Answer:

11.8%

Step-by-step explanation:

Here in this question, we want to find the probability of no success in the binomial experiment for 6 trials.

Let p = probability of success = 30% = 30/100 = 0.3

q = probability of failure = 1-p = 1-0.3 = 0.7

Now to calculate the probability, we shall need to use the Bernoulli approximation of the binomial theorem.

That would be;

P(X = 0) = 6C0 p^0 q^6

6C0 is pronounced six combination zero

= 6 * 0.3^0 * 0.7^6 = 1 * 1 * 0.117649 = 0.117649

This is approximately 0.1176

If we convert this to percentage we have 11.76%

But we want our answer rounded to the nearest tenth of a percent and that is 11.8%

8 0

3 years ago

Jocelyn needs to place a 7 meter ladder against a house so that the base of the ladder is 6.5 meters from the building. I want a

GrogVix [38]

Answer:

21.787°

Step-by-step explanation:

4 0

3 years ago

Write the solution in interval notation {x| 3 less than or equal to x}

klemol [59]

Answer:

Set in Interval Notation is: [ 3, ∞)

Step-by-step explanation:

Here, the given expression is:

R = {x| 3 less than or equal to x}

Here, the given set is given in the ROSTER FORM of set.

Now, converting the statement in mathematical form, we get:

R = { x : 3 ≤ x}

So, here: R is the SET OF AL ELEMENTS SUCH THAT each element is either EQUAL TO 3, or GREATER THAN 3.

Writing the st in SET BUILDER FORM, we get:

R = { 3, 4, 5, 6, ....... }

So, R in Interval Notation is: [ 3, ∞)

4 0

3 years ago

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Given m||n, find the value of x. t (x-3) m (8x+3)

Yuri [45]

Answer:

mtx(8x+3)-3mt(8x+3)

)Step-by-step explanation:

3 0

3 years ago

Read 2 more answers