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liq [111]
3 years ago
13

If np >5 and nq>5 estimate P (fewer than 4) with n=13 p=0.4 by using normal distribution as an approximate to the binomial

distribution if np <5 or nq< then state that the normal approximation is not suitable.
Mathematics
1 answer:
9966 [12]3 years ago
7 0
The Normal approximation to the binomial 

<span>is as follows
</span>
<span>mean=13(.5)=6.5 </span>
<span>variance=6.5(.5)=3.25 </span>
<span>Pr[fewer than 4]= </span>
<span>Pr[N<=3] Apply the continuity correction </span>
<span>Pr[N<=3.5]~=Pr[Z<3.5-6.5/sqrt(3.25)]= 
</span>
<span>Pr[Z<-1.66]=0.048457226

I hope my answer has come to your help. God bless and have a nice day ahead!</span>
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Part A:

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6 0
3 years ago
Evaluate 2•4-8 divided by 4
Vaselesa [24]

Answer:

<h2>6.</h2>

Step-by-step explanation:

Answer and work are in picture below.

4 0
3 years ago
PLEASE HELP ME
Ratling [72]
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8 0
3 years ago
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guapka [62]

Answer:

A

Step-by-step explanation:

In this question, we are concerned with selecting which of the options best represents the difference of two squares.

Let’s have an exposition below as follows;

Consider two numbers, which are perfect squares and can be expressed as a square of their square roots;

a^2 and b^2

where a and b represents the square roots of the numbers respectively.

Inserting a difference between the two, we have;

a^2 - b^2

Now by applying the difference of two squares, these numbers will become;

a^2 - b^2 = (a + b)(a-b)

So our answer out of the options will be that option that could be expressed as above.

The correct answer to this is option A

Kindly note that;

x^2 -9 can be expressed as x^2 - 3^2 and consequently, this can be written as;

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7 0
3 years ago
The radius of a circle is 5 cm. Find its area to the nearest tenth.
FromTheMoon [43]

Answer:

A = 78.5 cm²

Step-by-step explanation:

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A = (3.14)(25)

A = 78.5 cm²

7 0
3 years ago
Read 2 more answers
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