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TEA [102]
3 years ago
13

I am stuck on this problem and I need help trying to figure out how the problem works. We are supposed to be working backwards.

Mathematics
1 answer:
lesantik [10]3 years ago
3 0
68-40=28...
28 divided by 4= 7...4x7=28...
so the answer is they can by 7 fossils...
hope this helps!
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Refer to the accompanying technology display. The probabilities in the display were obtained using the values of n equals n=5 an
zubka84 [21]

Answer:

<u><em></em></u>

  • <u><em>Yes, it is reasonable to expect that more than one subject will experience​ headaches</em></u>

Explanation:

Notice that where it says "assume that 55 subjects are randomly selected ..." there is a typo. The correct statement is "assume that 5 subjects are randomly selected ..."

You are given the table with the probability distribution, assuming, correctly, the binomial distribution with n = 5 and p = 0.732.

  • p = 0.732 is the probability of success (an individual experiences headaches).
  • n = 5 is the number of trials (number of subjects in the sample).

The meaning of the table of the distribution probability is:

The probability that 0 subjects experience headaches is 0.0014; the probability that 1 subject experience headaches is 0.0189, and so on.

To answer whether it <em>is reasonable to expect that more than one subject will experience​ headaches</em>, you must find the probability that:

  • X = 2 or X = 3 or X = 4 or X = 5

That is:

  • P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5).

That is also the complement of P(X = 0) or P(X = 1)

  • 1 - P(X = 0) - P(X = 1)

From the table:

  • P(X = 0) = 0.0014
  • P(X = 1) = 0.0189

Hence:

  • 1 - P(X = 0) - P(X = 1) = 1 - 0.0014 - 0.0189 = 0.9797

That is very close to 1; thus, it is highly likely that more than 1 subject will experience headaches.

In conclusion, <em>yes, it is reasonable to expect that more than one subject will experience​ headaches</em>

6 0
3 years ago
Can you guys are help me<br> please, thank you
Tomtit [17]
Do you know what a transformation is
4 0
2 years ago
HELP ILY A tree is 4 1/2 feet tall. It is expected to grow by 1 3/4
ANEK [815]

Answer:

It will take 21 years.

Step-by-step explanation:

First, find what x would be for it to equal 40 feet. This can be done with the equation 4.5 + 1.75x = 40.

4.5 + 1.75x = 40

Subtract 4.5 from both sides. This cancels out the +4.5.

1.75x = 40 - 4.5

Subtract 4.5 from 40 to get 35.5.

1.75x = 35.5

Divide both sides by 1.75. This cancels out the *1.75.

x = 35.5/1.75

Expand 35.5/1.75 by multiply both the numerator and denominator by 100.

x = 3550/175

Reduce 3550/175 by canceling out 25.

x = 142/7 = 20 2/7

Go up by one from 20 to get the answer of 21 years.

4 0
3 years ago
How do I divide 5.6<br><br>​
tekilochka [14]

Answer: you can divide it by 2 and get 2.8 or you can divide it by 8 and get .7 or do 5.6 divided by 7 and get .8 ( I don’t really know what your asking but here you go )

3 0
3 years ago
Help meeeeeeeeee plzzzzzzzzzzzz
nika2105 [10]

Answer:

don't know man sry

Step-by-step explanation:

5 0
3 years ago
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