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spayn [35]
3 years ago
15

IF YOU DON'T KNOW THE ANSWER THEN DON'T PUT ONE

Mathematics
2 answers:
lord [1]3 years ago
5 0
7 5/12 hope that helped sorry if it didn’t
Rom4ik [11]3 years ago
3 0
Answer is 7 5/12. that’s the exact answer
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f a random sample of 300 adults is taken from the state of Colorado, where the rate of obesity is 19.8%, can we use the Normal a
Troyanec [42]

Answer:

Probability of at least 50 obese individuals in our sample is 0.92364 .

Step-by-step explanation:

We are given that a random sample of 300 adults is taken from the state of Colorado, where the rate of obesity is 19.8% .

Let X = Number of obese individuals

Firstly, X ~ Binom(n=300,p=0.198)

For approximating binomial distribution into normal distribution, firstly we have to calculate \mu and \sigma^{2} .

Mean of Normal distribution, \mu = n * p = 300 * 0.198 = 59.4

Variance of Normal distribution,\sigma^{2} = n * p * (1-p) = 300 *0.198 *0.802 = 47.64

So, now X ~ N(\mu = 59.4 , \sigma^{2} = 47.64)

The standard normal z score distribution is given by;

                     Z = \frac{X-\mu}{\sigma} ~ N(0,1)

So, probability of at least 50 obese individuals in our sample = P(X >= 50)

  P(X >= 50) = P(X > 49.5)  {using continuity correction}

  P(X > 49.5) = P( \frac{X-\mu}{\sigma} > \frac{49.5 - 59.4}{6.9} ) = P(Z > -1.43) = P(Z < 1.43) = 0.92364

Therefore, required probability is 0.92364 .

8 0
3 years ago
Plz help me with 9 and 10 im giveing 10 points to who ever helps me, and hurry plz QUICK
mr Goodwill [35]
G= 50 for 9 and for 10 p=4

Good luck
3 0
3 years ago
Read 2 more answers
I NEED SOMEONE TO HELP ME WITH MATH RIGHT NOW​
Liula [17]

Answer:

where is it

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP NOW!!!<br> QRST is a square. Use the properties of a square to find the value of x.
Annette [7]

Answer:

x = 6

Step-by-step explanation:

QRST is a square.

QR = RS (sides of a square are equal)

7x - 10 = 5x + 2

7x - 5x = 10 + 2

2x = 12

x = 12/2

x = 6

7 0
2 years ago
Simplify and write the answer in exponential form. 3^4 x 3^5 a.) 3^9
givi [52]

Answer:

<h3>(a) 3^9</h3>

Step-by-step explanation:

<h3> IN EXPONNETIAL FORM :</h3>

<h3>– (a^m× a^n) = (a^m+n)</h3>

<h3>3^4 × 3^5 = 3^4+5 = </h3>

<h2>3^9 </h2>

<h3 />
5 0
3 years ago
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