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son4ous [18]
4 years ago
14

A coin is weighted so that the probability of tails is 0.58. The coin is tossed 25 times, and the number of times tails is shown

is recorded. This procedure 150 times with the number of times tails is shown noted each time. What kind of distribution is simulated?
A. A binomial distribution with n=25 and p=0.58
B. A binomial distribution with n=2 and p=0.58
C. A sampling distribution of the sample proportion with n=25 and p=0.58
D. A sampling distribution of the sample proportion with n=150 and p=0.58
E. There is not enough information to determine the distribution
Mathematics
1 answer:
Leya [2.2K]4 years ago
4 0

Answer:

A. A binomial distribution with n=25 and p=0.58

Step-by-step explanation:

We're looking at the number of tails, not the proportion.  The probability of tails is 0.58, and the number of tosses is 25.

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Use a Maclaurin series to obtain the Maclaurin series for the given function.
Rama09 [41]

Answer:

14x cos(\frac{1}{15}x^{2})=14 \sum _{k=0} ^{\infty} \frac{(-1)^{k}x^{4k+1}}{(2k)!15^{2k}}

Step-by-step explanation:

In order to find this Maclaurin series, we can start by using a known Maclaurin series and modify it according to our function. A pretty regular Maclaurin series is the cos series, where:

cos(x)=\sum _{k=0} ^{\infty} \frac{(-1)^{k}x^{2k}}{(2k)!}

So all we need to do is include the additional modifications to the series, for example, the angle of our current function is: \frac{1}{15}x^{2} so for

cos(\frac{1}{15}x^{2})

the modified series will look like this:

cos(\frac{1}{15}x^{2})=\sum _{k=0} ^{\infty} \frac{(-1)^{k}(\frac{1}{15}x^{2})^{2k}}{(2k)!}

So we can use some algebra to simplify the series:

cos(\frac{1}{15}x^{2})=\sum _{k=0} ^{\infty} \frac{(-1)^{k}(\frac{1}{15^{2k}}x^{4k})}{(2k)!}

which can be rewritten like this:

cos(\frac{1}{15}x^{2})=\sum _{k=0} ^{\infty} \frac{(-1)^{k}x^{4k}}{(2k)!15^{2k}}

So finally, we can multiply a 14x to the series so we get:

14xcos(\frac{1}{15}x^{2})=14x\sum _{k=0} ^{\infty} \frac{(-1)^{k}x^{4k}}{(2k)!15^{2k}}

We can input the x into the series by using power rules so we get:

14xcos(\frac{1}{15}x^{2})=14\sum _{k=0} ^{\infty} \frac{(-1)^{k}x^{4k+1}}{(2k)!15^{2k}}

And that will be our answer.

3 0
3 years ago
Solve each system of equations<br><br> y=x+3<br> y=-2x-3
Natali [406]
Substitute into second equation:
x+3=2x-3
put variables on one side:
3x=6
x=2
Substitute to find y:
y=2+3
y=5
So (x, y) = (2, 5)
7 0
3 years ago
Read 2 more answers
20% tip on a bill of $15.33
GalinKa [24]

Answer:

tip = 3.07

final bill = 18.40

Step-by-step explanation:

To find the tip, we take the percent times the bill

tip = 20% * 15.33

     .20 *15.33

    3.066

Rounding to the nearest cent

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The final bill is the tip plus the bill

final bill = 15.33+3.07

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4 0
4 years ago
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Rudik [331]

Step-by-step explanation:

Given

The function is f(x)=x+4

for x_2>x_1, we will check the values of f(x_1) and f(x_2)

Take 3 and 4

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Similarly,

f(3)=3+4\\f(3)=7

Thus, f(4)>f(3)

Also, f'(x) is 1 i.e. a constant value. So, the function is increasing linearly for the given interval.

7 0
3 years ago
Please tell me the answer ASAP Lynette's average score on five tests is 18. If she scores 24 points on her sixth test, what is h
Helga [31]

Answer:

The average score of 6 tests is 19.

Step-by-step explanation:

Given that the average score of 5 tests is 18. So first, we have to find the total number of scores for 5 tests :

let \: x = total \: no. \: of \: scores

\frac{x}{5}  = 18

x = 18 \times 5

x = 90

We have found out that the total scores for 5 tests is 90. So we have to find the average of 6 scores :

\frac{x + 24}{5 + 1}   =  \frac{90 + 24}{6}  =  \frac{114}{6}  = 19

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4 years ago
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