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REY [17]
4 years ago
9

A boy wins a carnial games 50% of the time. He uses a spinnser with equal-sized sections labeled 0 - 9 to simulate trials of the

game. In the simulation, the numbers 0-4 represent winnning. Numbers 5-9, represent losing. Based on the simulations below that represent the boy playing the game 3 times, what is the probability he will win all 3 times? HINT: Your answer must be written in fraction: Favorable Outcome/Total Possible Outcome.
412 750 236 808 904 237 424 648 121 208
Mathematics
2 answers:
Alenkasestr [34]4 years ago
8 0

Answer:

412,424,121

Step-by-step explanation:

3/10 equals 309.

Nina [5.8K]4 years ago
5 0

Answer:

is it one of the numbers down below it? Cuase if it is then probablay 648

Step-by-step explanation:

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Last year, 45% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indica
natka813 [3]

Answer:

a)x₁  = 24  business owners plan to provide a gift this year

b)  p-value = 0,0017

c)p-value < α   we have to eject H₀   And support the claim that the proportion of business owners providing gifts has decrease

Step-by-step explanation:

a) Sample size 80

proportion  p₁  = 30 %   p₁ = 0,3

Then   x₁ = 80*0,3

x₁  = 24  business owners plan to provide a gift this year

b) Hypothesis Test

Null Hypothesis                    H₀          p₁  =  0,45

Alternative Hypothesis        Hₐ          p₁  <  0,45

p₁  =  0,3   then  q₁  =  1  -  0,3    q₁ =  0,7

z(s)  = ( p₁  -  0,45 )/ √p₁* q₁ / n

z(s)  =  -  0,15 / √0,002625

z(s) = - 0,15 / 0,05123

z(s) = - 2,9279

b)From z-table we find  p-value = 0,0017

c) If  α = 0,05   ( significance level )  as

p-value < α   we have to eject H₀   And support the claim that the proportion of business owners providing gifts has decrease

6 0
3 years ago
A membership to the local gym costs $40 and $2 per visit. Tell what type of function is it and also write the equation for it.
Elis [28]

Answer:

y=2x+40

linear function with the y-intercept at 40

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What will happen (other things being equal) if you increase the sample size used to construct a given confidence interval?
Bumek [7]

Answer:

So if you increase the sample size used to construct a given confidence interval, the confidence interval will be narrower, that is, more precise.

Step-by-step explanation:

The sample size is important to find the margin of errror of a confidence interval.

The margin of error is given by a formula in the following format:

M = \frac{c*s}{\sqrt{n}}

In which c is the critical value(depends on the distribution used, can be T or Z), s is the standard deviation(of the sample or the population) and n is the size of the sample.

As n increases, M decreases, which leads to a lower margin of error.

The lower the margin of error, the more precise the interval is.

So if you increase the sample size used to construct a given confidence interval, the confidence interval will be narrower, that is, more precise.

6 0
3 years ago
Which ordered pair is a solution to the system of inequalities?
Butoxors [25]

For this case, what we must do is find a point that meets both inequalities.

  • <em>y> -2 </em>
  • <em>x + y <4 </em>

We have then:

For (0,4):

First inequation:

4> -2 (correct)

Second inequality:

0 + 4 <4 (incorrect)

For (1,4):

First inequation:

4> -2 (correct)

Second inequality:

1 + 4 <4 (incorrect)

For (-3,5):

First inequation:

5> -2 (correct)

Second inequality:

-3 + 5 <4 (correct)

Point (-3,5) is system solution

For (-2,-3):

First inequation:

-3> -2 (incorrect)

Answer:

Point (-3.5) is system solution

5 0
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Nana76 [90]

Answer:

0.05?? this is random stuff bc it says I need 20 characters

5 0
3 years ago
Read 2 more answers
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